What is the value of 2(5b - 7) in terms of y if b = 3y ?
2 answers:
It’s just 2(5(3y)-7) or 2(15y-7), which is 30y-14.
2(5b-7), you can input b as 3y
2(5(3y)-7) —> 2(15y-7) —> 30y -14
—> 30y = 14 —> y = 14/30 —> y = 4.6667
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