3-4(2x-7)+9=186

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Solution for 3-4(2x-7)+9=186 equation:


Simplifying
3 + -4(2x + -7) + 9 = 186

Reorder the terms:
3 + -4(-7 + 2x) + 9 = 186
3 + (-7 * -4 + 2x * -4) + 9 = 186
3 + (28 + -8x) + 9 = 186

Reorder the terms:
3 + 28 + 9 + -8x = 186

Combine like terms: 3 + 28 = 31
31 + 9 + -8x = 186

Combine like terms: 31 + 9 = 40
40 + -8x = 186

Solving
40 + -8x = 186

Solving for variable 'x'.

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

Add '-40' to each side of the equation.
40 + -40 + -8x = 186 + -40

Combine like terms: 40 + -40 = 0
0 + -8x = 186 + -40
-8x = 186 + -40

Combine like terms: 186 + -40 = 146
-8x = 146

Divide each side by '-8'.
x = -18.25

Simplifying
x = -18.25

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