4[r-2]+7=-3[r+5]

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Solution for 4[r-2]+7=-3[r+5] equation:


Simplifying
4[r + -2] + 7 = -3[r + 5]

Reorder the terms:
4[-2 + r] + 7 = -3[r + 5]
[-2 * 4 + r * 4] + 7 = -3[r + 5]
[-8 + 4r] + 7 = -3[r + 5]

Reorder the terms:
-8 + 7 + 4r = -3[r + 5]

Combine like terms: -8 + 7 = -1
-1 + 4r = -3[r + 5]

Reorder the terms:
-1 + 4r = -3[5 + r]
-1 + 4r = [5 * -3 + r * -3]
-1 + 4r = [-15 + -3r]

Solving
-1 + 4r = -15 + -3r

Solving for variable 'r'.

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

Add '3r' to each side of the equation.
-1 + 4r + 3r = -15 + -3r + 3r

Combine like terms: 4r + 3r = 7r
-1 + 7r = -15 + -3r + 3r

Combine like terms: -3r + 3r = 0
-1 + 7r = -15 + 0
-1 + 7r = -15

Add '1' to each side of the equation.
-1 + 1 + 7r = -15 + 1

Combine like terms: -1 + 1 = 0
0 + 7r = -15 + 1
7r = -15 + 1

Combine like terms: -15 + 1 = -14
7r = -14

Divide each side by '7'.
r = -2

Simplifying
r = -2

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