3[3+r]=2r+4

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


Simplifying
3[3 + r] = 2r + 4
[3 * 3 + r * 3] = 2r + 4
[9 + 3r] = 2r + 4

Reorder the terms:
9 + 3r = 4 + 2r

Solving
9 + 3r = 4 + 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.
9 + 3r + -2r = 4 + 2r + -2r

Combine like terms: 3r + -2r = 1r
9 + 1r = 4 + 2r + -2r

Combine like terms: 2r + -2r = 0
9 + 1r = 4 + 0
9 + 1r = 4

Add '-9' to each side of the equation.
9 + -9 + 1r = 4 + -9

Combine like terms: 9 + -9 = 0
0 + 1r = 4 + -9
1r = 4 + -9

Combine like terms: 4 + -9 = -5
1r = -5

Divide each side by '1'.
r = -5

Simplifying
r = -5

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