7x+12+3x=-6(-7)+9x

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Solution for 7x+12+3x=-6(-7)+9x equation:


Simplifying
7x + 12 + 3x = -6(-7) + 9x

Reorder the terms:
12 + 7x + 3x = -6(-7) + 9x

Combine like terms: 7x + 3x = 10x
12 + 10x = -6(-7) + 9x

Multiply -6 * -7
12 + 10x = 42 + 9x

Solving
12 + 10x = 42 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
12 + 10x + -9x = 42 + 9x + -9x

Combine like terms: 10x + -9x = 1x
12 + 1x = 42 + 9x + -9x

Combine like terms: 9x + -9x = 0
12 + 1x = 42 + 0
12 + 1x = 42

Add '-12' to each side of the equation.
12 + -12 + 1x = 42 + -12

Combine like terms: 12 + -12 = 0
0 + 1x = 42 + -12
1x = 42 + -12

Combine like terms: 42 + -12 = 30
1x = 30

Divide each side by '1'.
x = 30

Simplifying
x = 30

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