-18=3+3x+4x

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Solution for -18=3+3x+4x equation:


Simplifying
-18 = 3 + 3x + 4x

Combine like terms: 3x + 4x = 7x
-18 = 3 + 7x

Solving
-18 = 3 + 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.
-18 + -7x = 3 + 7x + -7x

Combine like terms: 7x + -7x = 0
-18 + -7x = 3 + 0
-18 + -7x = 3

Add '18' to each side of the equation.
-18 + 18 + -7x = 3 + 18

Combine like terms: -18 + 18 = 0
0 + -7x = 3 + 18
-7x = 3 + 18

Combine like terms: 3 + 18 = 21
-7x = 21

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

Simplifying
x = -3

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