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# pre-algebra hw question

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write an example of an equation with variables on each side. state the steps you would use to isolate the variable.

Guest Jun 3, 2017
#1
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2x + 5y = y + 7x

to isolate x:

Minus y from both sides

2x + 4y = 7x

Minus 2x from both sides

4y = 5x

divide equation by 5

$$x = {4y \over 5}$$

to isolate y:

Minus y from both sides

2x + 4y = 7x

Minus 2x from both sides

4y = 5x

divide equation by 4

$$x = {5x \over 4}\frac{}{}$$

Yimpy123  Jun 3, 2017
#2
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That's a good one Yimpy !!

Also..at the very end there was a typo...I think you mean   $$y = {5x \over 4}$$

hectictar  Jun 3, 2017