30x+7+4x=100+40x

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Solution for 30x+7+4x=100+40x equation:


Simplifying
30x + 7 + 4x = 100 + 40x

Reorder the terms:
7 + 30x + 4x = 100 + 40x

Combine like terms: 30x + 4x = 34x
7 + 34x = 100 + 40x

Solving
7 + 34x = 100 + 40x

Solving for variable 'x'.

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

Add '-40x' to each side of the equation.
7 + 34x + -40x = 100 + 40x + -40x

Combine like terms: 34x + -40x = -6x
7 + -6x = 100 + 40x + -40x

Combine like terms: 40x + -40x = 0
7 + -6x = 100 + 0
7 + -6x = 100

Add '-7' to each side of the equation.
7 + -7 + -6x = 100 + -7

Combine like terms: 7 + -7 = 0
0 + -6x = 100 + -7
-6x = 100 + -7

Combine like terms: 100 + -7 = 93
-6x = 93

Divide each side by '-6'.
x = -15.5

Simplifying
x = -15.5

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