Answer:
listed below:
Explanation:
1) x + 234 = 867
-234 | -234
x = 633
2) 7t + 11 = 74
-11 | -11
7t = 63
÷7 | ÷7
t = 9
3) 3x + 7x = 120
3x + 7x = 10x.
10x = 120
÷10 | ÷10
x = 12
lmk if you need any help with explanations <3
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