(3x-15)-(7x+1)=

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Solution for (3x-15)-(7x+1)= equation:


Simplifying
(3x + -15) + -1(7x + 1) = 0

Reorder the terms:
(-15 + 3x) + -1(7x + 1) = 0

Remove parenthesis around (-15 + 3x)
-15 + 3x + -1(7x + 1) = 0

Reorder the terms:
-15 + 3x + -1(1 + 7x) = 0
-15 + 3x + (1 * -1 + 7x * -1) = 0
-15 + 3x + (-1 + -7x) = 0

Reorder the terms:
-15 + -1 + 3x + -7x = 0

Combine like terms: -15 + -1 = -16
-16 + 3x + -7x = 0

Combine like terms: 3x + -7x = -4x
-16 + -4x = 0

Solving
-16 + -4x = 0

Solving for variable 'x'.

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

Add '16' to each side of the equation.
-16 + 16 + -4x = 0 + 16

Combine like terms: -16 + 16 = 0
0 + -4x = 0 + 16
-4x = 0 + 16

Combine like terms: 0 + 16 = 16
-4x = 16

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

Simplifying
x = -4

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