7(3x+5)=3(3-2x)+2(5x-21)

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Solution for 7(3x+5)=3(3-2x)+2(5x-21) equation:


Simplifying
7(3x + 5) = 3(3 + -2x) + 2(5x + -21)

Reorder the terms:
7(5 + 3x) = 3(3 + -2x) + 2(5x + -21)
(5 * 7 + 3x * 7) = 3(3 + -2x) + 2(5x + -21)
(35 + 21x) = 3(3 + -2x) + 2(5x + -21)
35 + 21x = (3 * 3 + -2x * 3) + 2(5x + -21)
35 + 21x = (9 + -6x) + 2(5x + -21)

Reorder the terms:
35 + 21x = 9 + -6x + 2(-21 + 5x)
35 + 21x = 9 + -6x + (-21 * 2 + 5x * 2)
35 + 21x = 9 + -6x + (-42 + 10x)

Reorder the terms:
35 + 21x = 9 + -42 + -6x + 10x

Combine like terms: 9 + -42 = -33
35 + 21x = -33 + -6x + 10x

Combine like terms: -6x + 10x = 4x
35 + 21x = -33 + 4x

Solving
35 + 21x = -33 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
35 + 21x + -4x = -33 + 4x + -4x

Combine like terms: 21x + -4x = 17x
35 + 17x = -33 + 4x + -4x

Combine like terms: 4x + -4x = 0
35 + 17x = -33 + 0
35 + 17x = -33

Add '-35' to each side of the equation.
35 + -35 + 17x = -33 + -35

Combine like terms: 35 + -35 = 0
0 + 17x = -33 + -35
17x = -33 + -35

Combine like terms: -33 + -35 = -68
17x = -68

Divide each side by '17'.
x = -4

Simplifying
x = -4

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