Brightstorm Q & A : How do you solve this system of equation by substitution -5x-8y=172x-7y=-17 

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answer #1

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lqez now

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one of the variables have to isolated. you need to move one variable to the other side and divide everything by that number.

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18522

Charles April 27, 2011

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2x=7y-17 x=(7y-17)/2 plug this in the first equation for x, and then solve for y Then solve for x

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18536

chitra003 April 28, 2011

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