-7r+-3(4+-2r)+-3=

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Solution for -7r+-3(4+-2r)+-3= equation:


Simplifying
-7r + -3(4 + -2r) + -3 = 0
-7r + (4 * -3 + -2r * -3) + -3 = 0
-7r + (-12 + 6r) + -3 = 0

Reorder the terms:
-12 + -3 + -7r + 6r = 0

Combine like terms: -12 + -3 = -15
-15 + -7r + 6r = 0

Combine like terms: -7r + 6r = -1r
-15 + -1r = 0

Solving
-15 + -1r = 0

Solving for variable 'r'.

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

Add '15' to each side of the equation.
-15 + 15 + -1r = 0 + 15

Combine like terms: -15 + 15 = 0
0 + -1r = 0 + 15
-1r = 0 + 15

Combine like terms: 0 + 15 = 15
-1r = 15

Divide each side by '-1'.
r = -15

Simplifying
r = -15

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