-30-7x=40-12x

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Solution for -30-7x=40-12x equation:


Simplifying
-30 + -7x = 40 + -12x

Solving
-30 + -7x = 40 + -12x

Solving for variable 'x'.

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

Add '12x' to each side of the equation.
-30 + -7x + 12x = 40 + -12x + 12x

Combine like terms: -7x + 12x = 5x
-30 + 5x = 40 + -12x + 12x

Combine like terms: -12x + 12x = 0
-30 + 5x = 40 + 0
-30 + 5x = 40

Add '30' to each side of the equation.
-30 + 30 + 5x = 40 + 30

Combine like terms: -30 + 30 = 0
0 + 5x = 40 + 30
5x = 40 + 30

Combine like terms: 40 + 30 = 70
5x = 70

Divide each side by '5'.
x = 14

Simplifying
x = 14

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