2(x+9)+5x+7(2x)=144

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Solution for 2(x+9)+5x+7(2x)=144 equation:


Simplifying
2(x + 9) + 5x + 7(2x) = 144

Reorder the terms:
2(9 + x) + 5x + 7(2x) = 144
(9 * 2 + x * 2) + 5x + 7(2x) = 144
(18 + 2x) + 5x + 7(2x) = 144

Remove parenthesis around (2x)
18 + 2x + 5x + 7 * 2x = 144

Multiply 7 * 2
18 + 2x + 5x + 14x = 144

Combine like terms: 2x + 5x = 7x
18 + 7x + 14x = 144

Combine like terms: 7x + 14x = 21x
18 + 21x = 144

Solving
18 + 21x = 144

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 21x = 144 + -18

Combine like terms: 18 + -18 = 0
0 + 21x = 144 + -18
21x = 144 + -18

Combine like terms: 144 + -18 = 126
21x = 126

Divide each side by '21'.
x = 6

Simplifying
x = 6

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