-20-3r=-4(r+5)+2

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Solution for -20-3r=-4(r+5)+2 equation:


Simplifying
-20 + -3r = -4(r + 5) + 2

Reorder the terms:
-20 + -3r = -4(5 + r) + 2
-20 + -3r = (5 * -4 + r * -4) + 2
-20 + -3r = (-20 + -4r) + 2

Reorder the terms:
-20 + -3r = -20 + 2 + -4r

Combine like terms: -20 + 2 = -18
-20 + -3r = -18 + -4r

Solving
-20 + -3r = -18 + -4r

Solving for variable 'r'.

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

Add '4r' to each side of the equation.
-20 + -3r + 4r = -18 + -4r + 4r

Combine like terms: -3r + 4r = 1r
-20 + 1r = -18 + -4r + 4r

Combine like terms: -4r + 4r = 0
-20 + 1r = -18 + 0
-20 + 1r = -18

Add '20' to each side of the equation.
-20 + 20 + 1r = -18 + 20

Combine like terms: -20 + 20 = 0
0 + 1r = -18 + 20
1r = -18 + 20

Combine like terms: -18 + 20 = 2
1r = 2

Divide each side by '1'.
r = 2

Simplifying
r = 2

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