3(r+3)=7r+49

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Solution for 3(r+3)=7r+49 equation:


Simplifying
3(r + 3) = 7r + 49

Reorder the terms:
3(3 + r) = 7r + 49
(3 * 3 + r * 3) = 7r + 49
(9 + 3r) = 7r + 49

Reorder the terms:
9 + 3r = 49 + 7r

Solving
9 + 3r = 49 + 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
9 + 3r + -7r = 49 + 7r + -7r

Combine like terms: 3r + -7r = -4r
9 + -4r = 49 + 7r + -7r

Combine like terms: 7r + -7r = 0
9 + -4r = 49 + 0
9 + -4r = 49

Add '-9' to each side of the equation.
9 + -9 + -4r = 49 + -9

Combine like terms: 9 + -9 = 0
0 + -4r = 49 + -9
-4r = 49 + -9

Combine like terms: 49 + -9 = 40
-4r = 40

Divide each side by '-4'.
r = -10

Simplifying
r = -10

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