2(x+7)+x-3(4x)=100

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Solution for 2(x+7)+x-3(4x)=100 equation:


Simplifying
2(x + 7) + x + -3(4x) = 100

Reorder the terms:
2(7 + x) + x + -3(4x) = 100
(7 * 2 + x * 2) + x + -3(4x) = 100
(14 + 2x) + x + -3(4x) = 100

Remove parenthesis around (4x)
14 + 2x + x + -3 * 4x = 100

Multiply -3 * 4
14 + 2x + x + -12x = 100

Combine like terms: 2x + x = 3x
14 + 3x + -12x = 100

Combine like terms: 3x + -12x = -9x
14 + -9x = 100

Solving
14 + -9x = 100

Solving for variable 'x'.

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

Add '-14' to each side of the equation.
14 + -14 + -9x = 100 + -14

Combine like terms: 14 + -14 = 0
0 + -9x = 100 + -14
-9x = 100 + -14

Combine like terms: 100 + -14 = 86
-9x = 86

Divide each side by '-9'.
x = -9.555555556

Simplifying
x = -9.555555556

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