3x-2(4x+5)-10=40

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Solution for 3x-2(4x+5)-10=40 equation:


Simplifying
3x + -2(4x + 5) + -10 = 40

Reorder the terms:
3x + -2(5 + 4x) + -10 = 40
3x + (5 * -2 + 4x * -2) + -10 = 40
3x + (-10 + -8x) + -10 = 40

Reorder the terms:
-10 + -10 + 3x + -8x = 40

Combine like terms: -10 + -10 = -20
-20 + 3x + -8x = 40

Combine like terms: 3x + -8x = -5x
-20 + -5x = 40

Solving
-20 + -5x = 40

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 + -5x = 40 + 20

Combine like terms: -20 + 20 = 0
0 + -5x = 40 + 20
-5x = 40 + 20

Combine like terms: 40 + 20 = 60
-5x = 60

Divide each side by '-5'.
x = -12

Simplifying
x = -12

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