7x-12=x+3

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Solution for 7x-12=x+3 equation:


Simplifying
7x + -12 = x + 3

Reorder the terms:
-12 + 7x = x + 3

Reorder the terms:
-12 + 7x = 3 + x

Solving
-12 + 7x = 3 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-12 + 7x + -1x = 3 + x + -1x

Combine like terms: 7x + -1x = 6x
-12 + 6x = 3 + x + -1x

Combine like terms: x + -1x = 0
-12 + 6x = 3 + 0
-12 + 6x = 3

Add '12' to each side of the equation.
-12 + 12 + 6x = 3 + 12

Combine like terms: -12 + 12 = 0
0 + 6x = 3 + 12
6x = 3 + 12

Combine like terms: 3 + 12 = 15
6x = 15

Divide each side by '6'.
x = 2.5

Simplifying
x = 2.5

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