(7x+4)+(3x+9)=133

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Solution for (7x+4)+(3x+9)=133 equation:


Simplifying
(7x + 4) + (3x + 9) = 133

Reorder the terms:
(4 + 7x) + (3x + 9) = 133

Remove parenthesis around (4 + 7x)
4 + 7x + (3x + 9) = 133

Reorder the terms:
4 + 7x + (9 + 3x) = 133

Remove parenthesis around (9 + 3x)
4 + 7x + 9 + 3x = 133

Reorder the terms:
4 + 9 + 7x + 3x = 133

Combine like terms: 4 + 9 = 13
13 + 7x + 3x = 133

Combine like terms: 7x + 3x = 10x
13 + 10x = 133

Solving
13 + 10x = 133

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 10x = 133 + -13

Combine like terms: 13 + -13 = 0
0 + 10x = 133 + -13
10x = 133 + -13

Combine like terms: 133 + -13 = 120
10x = 120

Divide each side by '10'.
x = 12

Simplifying
x = 12

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