3(4-1)+4r=3(4+1)

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Solution for 3(4-1)+4r=3(4+1) equation: 


Simplifying
3(4 + -1) + 4r = 3(4 + 1)

Combine like terms: 4 + -1 = 3
3(3) + 4r = 3(4 + 1)

Multiply 3 * 3
9 + 4r = 3(4 + 1)

Combine like terms: 4 + 1 = 5
9 + 4r = 3(5)

Multiply 3 * 5
9 + 4r = 15

Solving
9 + 4r = 15

Solving for variable 'r'.

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

Add '-9' to each side of the equation.
9 + -9 + 4r = 15 + -9

Combine like terms: 9 + -9 = 0
0 + 4r = 15 + -9
4r = 15 + -9

Combine like terms: 15 + -9 = 6
4r = 6

Divide each side by '4'.
r = 1.5

Simplifying
r = 1.5

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