4r-8=3r+7

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Solution for 4r-8=3r+7 equation:


Simplifying
4r + -8 = 3r + 7

Reorder the terms:
-8 + 4r = 3r + 7

Reorder the terms:
-8 + 4r = 7 + 3r

Solving
-8 + 4r = 7 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
-8 + 4r + -3r = 7 + 3r + -3r

Combine like terms: 4r + -3r = 1r
-8 + 1r = 7 + 3r + -3r

Combine like terms: 3r + -3r = 0
-8 + 1r = 7 + 0
-8 + 1r = 7

Add '8' to each side of the equation.
-8 + 8 + 1r = 7 + 8

Combine like terms: -8 + 8 = 0
0 + 1r = 7 + 8
1r = 7 + 8

Combine like terms: 7 + 8 = 15
1r = 15

Divide each side by '1'.
r = 15

Simplifying
r = 15

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