3(4r+5)-2(3r+4)=7

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Solution for 3(4r+5)-2(3r+4)=7 equation:


Simplifying
3(4r + 5) + -2(3r + 4) = 7

Reorder the terms:
3(5 + 4r) + -2(3r + 4) = 7
(5 * 3 + 4r * 3) + -2(3r + 4) = 7
(15 + 12r) + -2(3r + 4) = 7

Reorder the terms:
15 + 12r + -2(4 + 3r) = 7
15 + 12r + (4 * -2 + 3r * -2) = 7
15 + 12r + (-8 + -6r) = 7

Reorder the terms:
15 + -8 + 12r + -6r = 7

Combine like terms: 15 + -8 = 7
7 + 12r + -6r = 7

Combine like terms: 12r + -6r = 6r
7 + 6r = 7

Add '-7' to each side of the equation.
7 + -7 + 6r = 7 + -7

Combine like terms: 7 + -7 = 0
0 + 6r = 7 + -7
6r = 7 + -7

Combine like terms: 7 + -7 = 0
6r = 0

Solving
6r = 0

Solving for variable 'r'.

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

Divide each side by '6'.
r = 0

Simplifying
r = 0

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