Question

Substitute for y and rewrite the system of equations as a single equation which can be used to solve for x .y=3x-8 y=4-x

Answer 1

3x - 8 = 4 - x

Explanation:

Note that for both of the equations, they all equal 1 y. This means that you can set the equations equal to each other, for using the transitive property:

3x - 8 = y = 4 - x ∴ 3x - 8 = 4 - x

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