-5(-7r-3)+7(4-8r)=43

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Solution for -5(-7r-3)+7(4-8r)=43 equation:


Simplifying
-5(-7r + -3) + 7(4 + -8r) = 43

Reorder the terms:
-5(-3 + -7r) + 7(4 + -8r) = 43
(-3 * -5 + -7r * -5) + 7(4 + -8r) = 43
(15 + 35r) + 7(4 + -8r) = 43
15 + 35r + (4 * 7 + -8r * 7) = 43
15 + 35r + (28 + -56r) = 43

Reorder the terms:
15 + 28 + 35r + -56r = 43

Combine like terms: 15 + 28 = 43
43 + 35r + -56r = 43

Combine like terms: 35r + -56r = -21r
43 + -21r = 43

Add '-43' to each side of the equation.
43 + -43 + -21r = 43 + -43

Combine like terms: 43 + -43 = 0
0 + -21r = 43 + -43
-21r = 43 + -43

Combine like terms: 43 + -43 = 0
-21r = 0

Solving
-21r = 0

Solving for variable 'r'.

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

Divide each side by '-21'.
r = 0

Simplifying
r = 0

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