4-10r=12(r-7)

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Solution for 4-10r=12(r-7) equation:


Simplifying
4 + -10r = 12(r + -7)

Reorder the terms:
4 + -10r = 12(-7 + r)
4 + -10r = (-7 * 12 + r * 12)
4 + -10r = (-84 + 12r)

Solving
4 + -10r = -84 + 12r

Solving for variable 'r'.

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

Add '-12r' to each side of the equation.
4 + -10r + -12r = -84 + 12r + -12r

Combine like terms: -10r + -12r = -22r
4 + -22r = -84 + 12r + -12r

Combine like terms: 12r + -12r = 0
4 + -22r = -84 + 0
4 + -22r = -84

Add '-4' to each side of the equation.
4 + -4 + -22r = -84 + -4

Combine like terms: 4 + -4 = 0
0 + -22r = -84 + -4
-22r = -84 + -4

Combine like terms: -84 + -4 = -88
-22r = -88

Divide each side by '-22'.
r = 4

Simplifying
r = 4

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