3x-2(2x+5)+7=20

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Solution for 3x-2(2x+5)+7=20 equation:


Simplifying
3x + -2(2x + 5) + 7 = 20

Reorder the terms:
3x + -2(5 + 2x) + 7 = 20
3x + (5 * -2 + 2x * -2) + 7 = 20
3x + (-10 + -4x) + 7 = 20

Reorder the terms:
-10 + 7 + 3x + -4x = 20

Combine like terms: -10 + 7 = -3
-3 + 3x + -4x = 20

Combine like terms: 3x + -4x = -1x
-3 + -1x = 20

Solving
-3 + -1x = 20

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + -1x = 20 + 3

Combine like terms: -3 + 3 = 0
0 + -1x = 20 + 3
-1x = 20 + 3

Combine like terms: 20 + 3 = 23
-1x = 23

Divide each side by '-1'.
x = -23

Simplifying
x = -23

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