3x+5(x-4)=142

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Solution for 3x+5(x-4)=142 equation:


Simplifying
3x + 5(x + -4) = 142

Reorder the terms:
3x + 5(-4 + x) = 142
3x + (-4 * 5 + x * 5) = 142
3x + (-20 + 5x) = 142

Reorder the terms:
-20 + 3x + 5x = 142

Combine like terms: 3x + 5x = 8x
-20 + 8x = 142

Solving
-20 + 8x = 142

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + 8x = 142 + 20

Combine like terms: -20 + 20 = 0
0 + 8x = 142 + 20
8x = 142 + 20

Combine like terms: 142 + 20 = 162
8x = 162

Divide each side by '8'.
x = 20.25

Simplifying
x = 20.25

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