3x+3(4x-20)=75

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Solution for 3x+3(4x-20)=75 equation:


Simplifying
3x + 3(4x + -20) = 75

Reorder the terms:
3x + 3(-20 + 4x) = 75
3x + (-20 * 3 + 4x * 3) = 75
3x + (-60 + 12x) = 75

Reorder the terms:
-60 + 3x + 12x = 75

Combine like terms: 3x + 12x = 15x
-60 + 15x = 75

Solving
-60 + 15x = 75

Solving for variable 'x'.

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

Add '60' to each side of the equation.
-60 + 60 + 15x = 75 + 60

Combine like terms: -60 + 60 = 0
0 + 15x = 75 + 60
15x = 75 + 60

Combine like terms: 75 + 60 = 135
15x = 135

Divide each side by '15'.
x = 9

Simplifying
x = 9

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