21(2x-6)=30(x+1)

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Solution for 21(2x-6)=30(x+1) equation:


Simplifying
21(2x + -6) = 30(x + 1)

Reorder the terms:
21(-6 + 2x) = 30(x + 1)
(-6 * 21 + 2x * 21) = 30(x + 1)
(-126 + 42x) = 30(x + 1)

Reorder the terms:
-126 + 42x = 30(1 + x)
-126 + 42x = (1 * 30 + x * 30)
-126 + 42x = (30 + 30x)

Solving
-126 + 42x = 30 + 30x

Solving for variable 'x'.

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

Add '-30x' to each side of the equation.
-126 + 42x + -30x = 30 + 30x + -30x

Combine like terms: 42x + -30x = 12x
-126 + 12x = 30 + 30x + -30x

Combine like terms: 30x + -30x = 0
-126 + 12x = 30 + 0
-126 + 12x = 30

Add '126' to each side of the equation.
-126 + 126 + 12x = 30 + 126

Combine like terms: -126 + 126 = 0
0 + 12x = 30 + 126
12x = 30 + 126

Combine like terms: 30 + 126 = 156
12x = 156

Divide each side by '12'.
x = 13

Simplifying
x = 13

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