Answer:
x = -2.
Explanation:
3x + 7 = 1
3x + 7 - 7 = 1 - 7
3x + 0 = -6
x = -6/3
x=-2
1st:
Subtract 7 to both sides, so..
3x+7=1
-7 -7
2nd:
3x=-6
3rd, Divide 3 to both sides:
_ _
3 3
4th:
x=-6/3
5th:
your answer is, x=-2
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