15x-40=8-x

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Solution for 15x-40=8-x equation:


Simplifying
15x + -40 = 8 + -1x

Reorder the terms:
-40 + 15x = 8 + -1x

Solving
-40 + 15x = 8 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-40 + 15x + x = 8 + -1x + x

Combine like terms: 15x + x = 16x
-40 + 16x = 8 + -1x + x

Combine like terms: -1x + x = 0
-40 + 16x = 8 + 0
-40 + 16x = 8

Add '40' to each side of the equation.
-40 + 40 + 16x = 8 + 40

Combine like terms: -40 + 40 = 0
0 + 16x = 8 + 40
16x = 8 + 40

Combine like terms: 8 + 40 = 48
16x = 48

Divide each side by '16'.
x = 3

Simplifying
x = 3

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