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

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


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

Reorder the terms:
3(-7 + -5x) = 3(-7x + 3)
(-7 * 3 + -5x * 3) = 3(-7x + 3)
(-21 + -15x) = 3(-7x + 3)

Reorder the terms:
-21 + -15x = 3(3 + -7x)
-21 + -15x = (3 * 3 + -7x * 3)
-21 + -15x = (9 + -21x)

Solving
-21 + -15x = 9 + -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.
-21 + -15x + 21x = 9 + -21x + 21x

Combine like terms: -15x + 21x = 6x
-21 + 6x = 9 + -21x + 21x

Combine like terms: -21x + 21x = 0
-21 + 6x = 9 + 0
-21 + 6x = 9

Add '21' to each side of the equation.
-21 + 21 + 6x = 9 + 21

Combine like terms: -21 + 21 = 0
0 + 6x = 9 + 21
6x = 9 + 21

Combine like terms: 9 + 21 = 30
6x = 30

Divide each side by '6'.
x = 5

Simplifying
x = 5

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