3x-40=28-x

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Solution for 3x-40=28-x equation:


Simplifying
3x + -40 = 28 + -1x

Reorder the terms:
-40 + 3x = 28 + -1x

Solving
-40 + 3x = 28 + -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 + 3x + x = 28 + -1x + x

Combine like terms: 3x + x = 4x
-40 + 4x = 28 + -1x + x

Combine like terms: -1x + x = 0
-40 + 4x = 28 + 0
-40 + 4x = 28

Add '40' to each side of the equation.
-40 + 40 + 4x = 28 + 40

Combine like terms: -40 + 40 = 0
0 + 4x = 28 + 40
4x = 28 + 40

Combine like terms: 28 + 40 = 68
4x = 68

Divide each side by '4'.
x = 17

Simplifying
x = 17

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