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

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


Simplifying
7 + -3r = r + -4(5 + 7r) + -4
7 + -3r = r + (5 * -4 + 7r * -4) + -4
7 + -3r = r + (-20 + -28r) + -4

Reorder the terms:
7 + -3r = -20 + -4 + r + -28r

Combine like terms: -20 + -4 = -24
7 + -3r = -24 + r + -28r

Combine like terms: r + -28r = -27r
7 + -3r = -24 + -27r

Solving
7 + -3r = -24 + -27r

Solving for variable 'r'.

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

Add '27r' to each side of the equation.
7 + -3r + 27r = -24 + -27r + 27r

Combine like terms: -3r + 27r = 24r
7 + 24r = -24 + -27r + 27r

Combine like terms: -27r + 27r = 0
7 + 24r = -24 + 0
7 + 24r = -24

Add '-7' to each side of the equation.
7 + -7 + 24r = -24 + -7

Combine like terms: 7 + -7 = 0
0 + 24r = -24 + -7
24r = -24 + -7

Combine like terms: -24 + -7 = -31
24r = -31

Divide each side by '24'.
r = -1.291666667

Simplifying
r = -1.291666667

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