3[x+3]-7=8

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Solution for 3[x+3]-7=8 equation:


Simplifying
3[x + 3] + -7 = 8

Reorder the terms:
3[3 + x] + -7 = 8
[3 * 3 + x * 3] + -7 = 8
[9 + 3x] + -7 = 8

Reorder the terms:
9 + -7 + 3x = 8

Combine like terms: 9 + -7 = 2
2 + 3x = 8

Solving
2 + 3x = 8

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 3x = 8 + -2

Combine like terms: 2 + -2 = 0
0 + 3x = 8 + -2
3x = 8 + -2

Combine like terms: 8 + -2 = 6
3x = 6

Divide each side by '3'.
x = 2

Simplifying
x = 2

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