5x(3x-2)-15x(4+x)=140

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Solution for 5x(3x-2)-15x(4+x)=140 equation: 


Simplifying
5x(3x + -2) + -15x(4 + x) = 140

Reorder the terms:
5x(-2 + 3x) + -15x(4 + x) = 140
(-2 * 5x + 3x * 5x) + -15x(4 + x) = 140
(-10x + 15x2) + -15x(4 + x) = 140
-10x + 15x2 + (4 * -15x + x * -15x) = 140
-10x + 15x2 + (-60x + -15x2) = 140

Reorder the terms:
-10x + -60x + 15x2 + -15x2 = 140

Combine like terms: -10x + -60x = -70x
-70x + 15x2 + -15x2 = 140

Combine like terms: 15x2 + -15x2 = 0
-70x + 0 = 140
-70x = 140

Solving
-70x = 140

Solving for variable 'x'.

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

Divide each side by '-70'.
x = -2

Simplifying
x = -2

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