7x+28=8x+31

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Solution for 7x+28=8x+31 equation:


Simplifying
7x + 28 = 8x + 31

Reorder the terms:
28 + 7x = 8x + 31

Reorder the terms:
28 + 7x = 31 + 8x

Solving
28 + 7x = 31 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
28 + 7x + -8x = 31 + 8x + -8x

Combine like terms: 7x + -8x = -1x
28 + -1x = 31 + 8x + -8x

Combine like terms: 8x + -8x = 0
28 + -1x = 31 + 0
28 + -1x = 31

Add '-28' to each side of the equation.
28 + -28 + -1x = 31 + -28

Combine like terms: 28 + -28 = 0
0 + -1x = 31 + -28
-1x = 31 + -28

Combine like terms: 31 + -28 = 3
-1x = 3

Divide each side by '-1'.
x = -3

Simplifying
x = -3

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