7r+2=5r+8

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Solution for 7r+2=5r+8 equation:


Simplifying
7r + 2 = 5r + 8

Reorder the terms:
2 + 7r = 5r + 8

Reorder the terms:
2 + 7r = 8 + 5r

Solving
2 + 7r = 8 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
2 + 7r + -5r = 8 + 5r + -5r

Combine like terms: 7r + -5r = 2r
2 + 2r = 8 + 5r + -5r

Combine like terms: 5r + -5r = 0
2 + 2r = 8 + 0
2 + 2r = 8

Add '-2' to each side of the equation.
2 + -2 + 2r = 8 + -2

Combine like terms: 2 + -2 = 0
0 + 2r = 8 + -2
2r = 8 + -2

Combine like terms: 8 + -2 = 6
2r = 6

Divide each side by '2'.
r = 3

Simplifying
r = 3

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