Please solve: 3(x - 1) - (x + 2) (less than or equal to) 7?

3x - 3 - x - 2 ≤ 7

2x ≤ 12

x ≤ 6

3(x - 1) - (x + 2) <= 7
3x - 3 - x - 2 <= 7
2x <= 12
x <= 6

Answer: x <= 6

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3(x - 1) - (x + 2) ≤ 7
3*x - 3*1 - x - 2 ≤ 7
3x - 3 - x ≤ 7 + 2
3x - x ≤ 9 + 3
2x ≤ 12
x ≤ 12/2
x ≤ 6

3(x-1)-(x+2)=7
3x-3-x-2=7
collecting like terms together
2x=12
therefore
x=6.

3x-3-x-2<=7
2x-5<=7
2x<=7+5
2x<=12
x<=6