-3(1+7r)+2r=-8(1+3r)

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Solution for -3(1+7r)+2r=-8(1+3r) equation:


Simplifying
-3(1 + 7r) + 2r = -8(1 + 3r)
(1 * -3 + 7r * -3) + 2r = -8(1 + 3r)
(-3 + -21r) + 2r = -8(1 + 3r)

Combine like terms: -21r + 2r = -19r
-3 + -19r = -8(1 + 3r)
-3 + -19r = (1 * -8 + 3r * -8)
-3 + -19r = (-8 + -24r)

Solving
-3 + -19r = -8 + -24r

Solving for variable 'r'.

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

Add '24r' to each side of the equation.
-3 + -19r + 24r = -8 + -24r + 24r

Combine like terms: -19r + 24r = 5r
-3 + 5r = -8 + -24r + 24r

Combine like terms: -24r + 24r = 0
-3 + 5r = -8 + 0
-3 + 5r = -8

Add '3' to each side of the equation.
-3 + 3 + 5r = -8 + 3

Combine like terms: -3 + 3 = 0
0 + 5r = -8 + 3
5r = -8 + 3

Combine like terms: -8 + 3 = -5
5r = -5

Divide each side by '5'.
r = -1

Simplifying
r = -1

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