How do you solve #240= 8( 7b - 5)#?

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Answer 1 · 2017-10-15T12:43:25

#b=5#

Let's take the equation in steps. We want to isolate #b#.

Looking at the equation, we want to first divide by #8#.

#240/8=(8(7b-5))/8#

#30=7b-5#

Now, let's add #5# to both sides. Remember, we're trying to get #b# b itself, so we try to remove numbers from that side.

#30+5=(7b-5)+5#

#35=7b#

Now, we can simply divide both sides by #7# to get:

#35/7=(7b)/7#

#b=5#