4x+18=7(x-3)

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Solution for 4x+18=7(x-3) equation:


Simplifying
4x + 18 = 7(x + -3)

Reorder the terms:
18 + 4x = 7(x + -3)

Reorder the terms:
18 + 4x = 7(-3 + x)
18 + 4x = (-3 * 7 + x * 7)
18 + 4x = (-21 + 7x)

Solving
18 + 4x = -21 + 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 + 4x + -7x = -21 + 7x + -7x

Combine like terms: 4x + -7x = -3x
18 + -3x = -21 + 7x + -7x

Combine like terms: 7x + -7x = 0
18 + -3x = -21 + 0
18 + -3x = -21

Add '-18' to each side of the equation.
18 + -18 + -3x = -21 + -18

Combine like terms: 18 + -18 = 0
0 + -3x = -21 + -18
-3x = -21 + -18

Combine like terms: -21 + -18 = -39
-3x = -39

Divide each side by '-3'.
x = 13

Simplifying
x = 13

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