9(3x+7)-4(3x+2)=7(3x+1)

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Solution for 9(3x+7)-4(3x+2)=7(3x+1) equation:


Simplifying
9(3x + 7) + -4(3x + 2) = 7(3x + 1)

Reorder the terms:
9(7 + 3x) + -4(3x + 2) = 7(3x + 1)
(7 * 9 + 3x * 9) + -4(3x + 2) = 7(3x + 1)
(63 + 27x) + -4(3x + 2) = 7(3x + 1)

Reorder the terms:
63 + 27x + -4(2 + 3x) = 7(3x + 1)
63 + 27x + (2 * -4 + 3x * -4) = 7(3x + 1)
63 + 27x + (-8 + -12x) = 7(3x + 1)

Reorder the terms:
63 + -8 + 27x + -12x = 7(3x + 1)

Combine like terms: 63 + -8 = 55
55 + 27x + -12x = 7(3x + 1)

Combine like terms: 27x + -12x = 15x
55 + 15x = 7(3x + 1)

Reorder the terms:
55 + 15x = 7(1 + 3x)
55 + 15x = (1 * 7 + 3x * 7)
55 + 15x = (7 + 21x)

Solving
55 + 15x = 7 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
55 + 15x + -21x = 7 + 21x + -21x

Combine like terms: 15x + -21x = -6x
55 + -6x = 7 + 21x + -21x

Combine like terms: 21x + -21x = 0
55 + -6x = 7 + 0
55 + -6x = 7

Add '-55' to each side of the equation.
55 + -55 + -6x = 7 + -55

Combine like terms: 55 + -55 = 0
0 + -6x = 7 + -55
-6x = 7 + -55

Combine like terms: 7 + -55 = -48
-6x = -48

Divide each side by '-6'.
x = 8

Simplifying
x = 8

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