Answer:
1) X + 2 = 3
ans= x=3-2
x=1
2.) 2 x X = 12
ans= 2x=12
x=12/2
x=6
3.) 7x + 4 = 18
ans=7x =18-4
7x=14
x=14/7
x=2
4.) 4x - 7 = 1
ans= 4x=1+7
4x=8
x=8/4
hope it helps thank uu...
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