7(3r-19)=8r-29

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Solution for 7(3r-19)=8r-29 equation:


Simplifying
7(3r + -19) = 8r + -29

Reorder the terms:
7(-19 + 3r) = 8r + -29
(-19 * 7 + 3r * 7) = 8r + -29
(-133 + 21r) = 8r + -29

Reorder the terms:
-133 + 21r = -29 + 8r

Solving
-133 + 21r = -29 + 8r

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
-133 + 21r + -8r = -29 + 8r + -8r

Combine like terms: 21r + -8r = 13r
-133 + 13r = -29 + 8r + -8r

Combine like terms: 8r + -8r = 0
-133 + 13r = -29 + 0
-133 + 13r = -29

Add '133' to each side of the equation.
-133 + 133 + 13r = -29 + 133

Combine like terms: -133 + 133 = 0
0 + 13r = -29 + 133
13r = -29 + 133

Combine like terms: -29 + 133 = 104
13r = 104

Divide each side by '13'.
r = 8

Simplifying
r = 8

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