13-5x(x+x)=140

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Solution for 13-5x(x+x)=140 equation:


Simplifying
13 + -5x(x + x) = 140

Combine like terms: x + x = 2x
13 + -5x(2x) = 140

Remove parenthesis around (2x)
13 + -5x * 2x = 140

Reorder the terms for easier multiplication:
13 + -5 * 2x * x = 140

Multiply -5 * 2
13 + -10x * x = 140

Multiply x * x
13 + -10x2 = 140

Solving
13 + -10x2 = 140

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + -10x2 = 140 + -13

Combine like terms: 13 + -13 = 0
0 + -10x2 = 140 + -13
-10x2 = 140 + -13

Combine like terms: 140 + -13 = 127
-10x2 = 127

Divide each side by '-10'.
x2 = -12.7

Simplifying
x2 = -12.7

Reorder the terms:
12.7 + x2 = -12.7 + 12.7

Combine like terms: -12.7 + 12.7 = 0.0
12.7 + x2 = 0.0

The solution to this equation could not be determined.

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