7(1+6x)=(30-x)3+7

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Solution for 7(1+6x)=(30-x)3+7 equation:


Simplifying
7(1 + 6x) = (30 + -1x) * 3 + 7
(1 * 7 + 6x * 7) = (30 + -1x) * 3 + 7
(7 + 42x) = (30 + -1x) * 3 + 7

Reorder the terms for easier multiplication:
7 + 42x = 3(30 + -1x) + 7
7 + 42x = (30 * 3 + -1x * 3) + 7
7 + 42x = (90 + -3x) + 7

Reorder the terms:
7 + 42x = 90 + 7 + -3x

Combine like terms: 90 + 7 = 97
7 + 42x = 97 + -3x

Solving
7 + 42x = 97 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
7 + 42x + 3x = 97 + -3x + 3x

Combine like terms: 42x + 3x = 45x
7 + 45x = 97 + -3x + 3x

Combine like terms: -3x + 3x = 0
7 + 45x = 97 + 0
7 + 45x = 97

Add '-7' to each side of the equation.
7 + -7 + 45x = 97 + -7

Combine like terms: 7 + -7 = 0
0 + 45x = 97 + -7
45x = 97 + -7

Combine like terms: 97 + -7 = 90
45x = 90

Divide each side by '45'.
x = 2

Simplifying
x = 2

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