3(r-3)-7=-5-(2r+1)

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Solution for 3(r-3)-7=-5-(2r+1) equation:


Simplifying
3(r + -3) + -7 = -5 + -1(2r + 1)

Reorder the terms:
3(-3 + r) + -7 = -5 + -1(2r + 1)
(-3 * 3 + r * 3) + -7 = -5 + -1(2r + 1)
(-9 + 3r) + -7 = -5 + -1(2r + 1)

Reorder the terms:
-9 + -7 + 3r = -5 + -1(2r + 1)

Combine like terms: -9 + -7 = -16
-16 + 3r = -5 + -1(2r + 1)

Reorder the terms:
-16 + 3r = -5 + -1(1 + 2r)
-16 + 3r = -5 + (1 * -1 + 2r * -1)
-16 + 3r = -5 + (-1 + -2r)

Combine like terms: -5 + -1 = -6
-16 + 3r = -6 + -2r

Solving
-16 + 3r = -6 + -2r

Solving for variable 'r'.

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

Add '2r' to each side of the equation.
-16 + 3r + 2r = -6 + -2r + 2r

Combine like terms: 3r + 2r = 5r
-16 + 5r = -6 + -2r + 2r

Combine like terms: -2r + 2r = 0
-16 + 5r = -6 + 0
-16 + 5r = -6

Add '16' to each side of the equation.
-16 + 16 + 5r = -6 + 16

Combine like terms: -16 + 16 = 0
0 + 5r = -6 + 16
5r = -6 + 16

Combine like terms: -6 + 16 = 10
5r = 10

Divide each side by '5'.
r = 2

Simplifying
r = 2

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