substitution method, Algebra

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solve x-y=8 and x+y=4 using one of the algebraic methods

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Ratio, Veronica''s family ordered 2 pizzas that cost $13.75 each and 2 pitc...

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Help, How to do x+y+z?

How to do x+y+z?

Logarithms, if log a-b/2=1/2 (log a + log b) show that a*a+b*b=6ab

if log a-b/2=1/2 (log a + log b) show that a*a+b*b=6ab

Solve, 1/x+10>0 what is the solution set

1/x+10>0 what is the solution set

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