3r+7=56-4r

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Solution for 3r+7=56-4r equation:


Simplifying
3r + 7 = 56 + -4r

Reorder the terms:
7 + 3r = 56 + -4r

Solving
7 + 3r = 56 + -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.
7 + 3r + 4r = 56 + -4r + 4r

Combine like terms: 3r + 4r = 7r
7 + 7r = 56 + -4r + 4r

Combine like terms: -4r + 4r = 0
7 + 7r = 56 + 0
7 + 7r = 56

Add '-7' to each side of the equation.
7 + -7 + 7r = 56 + -7

Combine like terms: 7 + -7 = 0
0 + 7r = 56 + -7
7r = 56 + -7

Combine like terms: 56 + -7 = 49
7r = 49

Divide each side by '7'.
r = 7

Simplifying
r = 7

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