3(-5x+40)+8=0

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Solution for 3(-5x+40)+8=0 equation:


Simplifying
3(-5x + 40) + 8 = 0

Reorder the terms:
3(40 + -5x) + 8 = 0
(40 * 3 + -5x * 3) + 8 = 0
(120 + -15x) + 8 = 0

Reorder the terms:
120 + 8 + -15x = 0

Combine like terms: 120 + 8 = 128
128 + -15x = 0

Solving
128 + -15x = 0

Solving for variable 'x'.

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

Add '-128' to each side of the equation.
128 + -128 + -15x = 0 + -128

Combine like terms: 128 + -128 = 0
0 + -15x = 0 + -128
-15x = 0 + -128

Combine like terms: 0 + -128 = -128
-15x = -128

Divide each side by '-15'.
x = 8.533333333

Simplifying
x = 8.533333333

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