Sanai E.

asked • 01/07/20

Write an expression that you can substitute for x in the top equation of the system below to solve the system by substation.

5x - 2y = 8

x - y = 1

1 Expert Answer

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Paul M. answered • 01/07/20

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5.0 (39)

BS Mathematics, MD
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x=y+1 is the equation you need

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Sanai E.

I don't understand :(
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01/07/20

Paul M.

tutor
Add y to each side of the 2nd equation. Now substitute this equation for y into the 1st equation. Expand & collect terms and you will have a linear equation in x. Solve for x. Then plug the value for x into the equation you got for y and you will get the value of y.
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01/07/20

David W.

The second equation may be solved for x, so you may "write an expression that you can substitute for x in the top equation of the system."
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01/07/20

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