-9=4(x+3)+3x

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Solution for -9=4(x+3)+3x equation:


Simplifying
-9 = 4(x + 3) + 3x

Reorder the terms:
-9 = 4(3 + x) + 3x
-9 = (3 * 4 + x * 4) + 3x
-9 = (12 + 4x) + 3x

Combine like terms: 4x + 3x = 7x
-9 = 12 + 7x

Solving
-9 = 12 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-9 + -7x = 12 + 7x + -7x

Combine like terms: 7x + -7x = 0
-9 + -7x = 12 + 0
-9 + -7x = 12

Add '9' to each side of the equation.
-9 + 9 + -7x = 12 + 9

Combine like terms: -9 + 9 = 0
0 + -7x = 12 + 9
-7x = 12 + 9

Combine like terms: 12 + 9 = 21
-7x = 21

Divide each side by '-7'.
x = -3

Simplifying
x = -3

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