3(5r-5)-4(3r-1)=

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Solution for 3(5r-5)-4(3r-1)= equation:


Simplifying
3(5r + -5) + -4(3r + -1) = 0

Reorder the terms:
3(-5 + 5r) + -4(3r + -1) = 0
(-5 * 3 + 5r * 3) + -4(3r + -1) = 0
(-15 + 15r) + -4(3r + -1) = 0

Reorder the terms:
-15 + 15r + -4(-1 + 3r) = 0
-15 + 15r + (-1 * -4 + 3r * -4) = 0
-15 + 15r + (4 + -12r) = 0

Reorder the terms:
-15 + 4 + 15r + -12r = 0

Combine like terms: -15 + 4 = -11
-11 + 15r + -12r = 0

Combine like terms: 15r + -12r = 3r
-11 + 3r = 0

Solving
-11 + 3r = 0

Solving for variable 'r'.

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

Add '11' to each side of the equation.
-11 + 11 + 3r = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 3r = 0 + 11
3r = 0 + 11

Combine like terms: 0 + 11 = 11
3r = 11

Divide each side by '3'.
r = 3.666666667

Simplifying
r = 3.666666667

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