How to solve Two-Step Equations?

Two-step equations involve two math operations - one operation is addition or subtraction. The second operation is multiplication or division.

To solve a two-step equation, follow the order of operations backwards - add or subtract, then multiply or divide to solve for x.

Example 1: Solve for x.
2x-1=3
2x-1+1=3+1 First we add 1 to both sides of the equation.
2x=4
2x/2=4/2 Now we divide both sides of the equation by 2.
x=2

Example 2: Solve for x.
x/2 +1=7
x/2+1-1=7-1 First we subtract 1 from both sides of the equation.
x/2 =6
2.x/2=2.6 Now we multiply both sides of the equation by 2.
x=12

 

 

Posted Date: 5/2/2013 5:32:43 AM | Location : United States

Ask an Expert

Related Discussions:- How to solve two-step equations, Assignment Help, Ask Question on How to solve two-step equations, Get Answer, Expert's Help, How to solve two-step equations Discussions

Write discussion on How to solve two-step equations
Your posts are moderated

Write your message here..

Related Questions

Core concepts, what are the core concept of marketing what are the core concept of marketing

Find integer if sum of two consecutive odd integers is -112, The sum of two... The sum of two consecutive odd integers is -112. What is the larger integer? Two consecutive odd integers are numbers in order such as 3 and 5 or -31 and -29, that are each 2 n

Noot help me, 4+8/56.75 4+8/56.75

Solving a quadratic equation, In polynomials you have seen expressi... In polynomials you have seen expressions of the form x 2 + 3x - 4. Also we know that when an expression is equated to zero or some other expression, we cal

Solving ratios, you are in charge of making punch for an upcoming dance. th... you are in charge of making punch for an upcoming dance. the punch recipe makes 5 cups of punch by making 3 cups of cranberry juice with 2 cups of apple juice. What is the ratio of

Define period, Q. Define Period, Amplitude and Phase Shift? Ans. P... Q. Define Period, Amplitude and Phase Shift? Ans. Period, amplitude and phase shift are used when describing a sinusoidal curve The period of a function is the smallest

Advantages of peer interaction in learning maths, Can you think of some mor... Can you think of some more advantages of peer interaction and child-to child learning? If you agree that children learn a lot from each other, then how can we maximise such oppo

Solving an equation problems, Temperature: On one day in Fairfield, Montana... Temperature: On one day in Fairfield, Montana the temperature dropped 80 degree fahrenheit from noon to midnight. If the temperature at midnight was -21 degree fahrenheit, write an

Alegbra, what iz the value of x if y=56 what iz the value of x if y=56

Solve the value of x and y , 7(y + 3) - 2(x + 2) = 14, 4 (y - 2) + 3(x ... 7(y + 3) - 2(x + 2) = 14, 4 (y - 2) + 3(x - 3) = 2 Ans:    7(y + 3) - 2 (x+ 2) = 14          --------- (1) 4(y- 2) + 3(x - 3) = 2 ----------(2) From (1) 7y +21 -