3(r+-1)-4=2

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Solution for 3(r+-1)-4=2 equation:


Simplifying
3(r + -1) + -4 = 2

Reorder the terms:
3(-1 + r) + -4 = 2
(-1 * 3 + r * 3) + -4 = 2
(-3 + 3r) + -4 = 2

Reorder the terms:
-3 + -4 + 3r = 2

Combine like terms: -3 + -4 = -7
-7 + 3r = 2

Solving
-7 + 3r = 2

Solving for variable 'r'.

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

Add '7' to each side of the equation.
-7 + 7 + 3r = 2 + 7

Combine like terms: -7 + 7 = 0
0 + 3r = 2 + 7
3r = 2 + 7

Combine like terms: 2 + 7 = 9
3r = 9

Divide each side by '3'.
r = 3

Simplifying
r = 3

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