40=7x-y

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Solution for 40=7x-y equation:


Simplifying
40 = 7x + -1y

Solving
40 = 7x + -1y

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-7x' to each side of the equation.
40 + -7x = 7x + -7x + -1y

Combine like terms: 7x + -7x = 0
40 + -7x = 0 + -1y
40 + -7x = -1y

Add '-40' to each side of the equation.
40 + -40 + -7x = -40 + -1y

Combine like terms: 40 + -40 = 0
0 + -7x = -40 + -1y
-7x = -40 + -1y

Divide each side by '-7'.
x = 5.714285714 + 0.1428571429y

Simplifying
x = 5.714285714 + 0.1428571429y

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