Answer:
3) x=7
4) x=6
5) x=8
6) x=4
AB=24
Explanation:
3) 3x+4x=49
7x=49
x=49÷7
x=7
4) (8x-14)+(4x+1)=59
12x-13=59
12x=59+13
12x=72
x=6
5) 6x-7=5x+1
6x-5x=1+7
x=8
6) 6x+2x+1=33
8x=33-1
8x=32
x=4
AB=6x=6(4)=24
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