(3+x)4+(5x)=66

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Solution for (3+x)4+(5x)=66 equation:


Simplifying
(3 + x) * 4 + (5x) = 66

Reorder the terms for easier multiplication:
4(3 + x) + (5x) = 66
(3 * 4 + x * 4) + (5x) = 66
(12 + 4x) + (5x) = 66

Combine like terms: 4x + (5x) = 9x
12 + 9x = 66

Solving
12 + 9x = 66

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 9x = 66 + -12

Combine like terms: 12 + -12 = 0
0 + 9x = 66 + -12
9x = 66 + -12

Combine like terms: 66 + -12 = 54
9x = 54

Divide each side by '9'.
x = 6

Simplifying
x = 6

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