7(4+3r)=-140

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Solution for 7(4+3r)=-140 equation: 


Simplifying
7(4 + 3r) = -140
(4 * 7 + 3r * 7) = -140
(28 + 21r) = -140

Solving
28 + 21r = -140

Solving for variable 'r'.

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

Add '-28' to each side of the equation.
28 + -28 + 21r = -140 + -28

Combine like terms: 28 + -28 = 0
0 + 21r = -140 + -28
21r = -140 + -28

Combine like terms: -140 + -28 = -168
21r = -168

Divide each side by '21'.
r = -8

Simplifying
r = -8

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