99=3x+2(2x+18)

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Solution for 99=3x+2(2x+18) equation:


Simplifying
99 = 3x + 2(2x + 18)

Reorder the terms:
99 = 3x + 2(18 + 2x)
99 = 3x + (18 * 2 + 2x * 2)
99 = 3x + (36 + 4x)

Reorder the terms:
99 = 36 + 3x + 4x

Combine like terms: 3x + 4x = 7x
99 = 36 + 7x

Solving
99 = 36 + 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.
99 + -7x = 36 + 7x + -7x

Combine like terms: 7x + -7x = 0
99 + -7x = 36 + 0
99 + -7x = 36

Add '-99' to each side of the equation.
99 + -99 + -7x = 36 + -99

Combine like terms: 99 + -99 = 0
0 + -7x = 36 + -99
-7x = 36 + -99

Combine like terms: 36 + -99 = -63
-7x = -63

Divide each side by '-7'.
x = 9

Simplifying
x = 9

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