a)x+x+1=79
x=39
b)x+x+2=126
x=62
c)2x+x=27
x=9
d)3x-8=70
x=26
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a)x+x+1=79
x=39
b)x+x+2=126
x=62
c)2x+x=27
x=9
d)3x-8=70
x=26