Asked by Faithlover121

im confused on this one someone plz help me
3x - 3 = 15
a. 4
b. 5
c. 6
d.7
Answered by Faithlover121
i think its b but im not sure check this 4 me
Answered by Reiny
If you "think" it is b) then why did you not try that choice?
if x=5, then
left side = 3(5)-3 = 15-3 = 12
right side = 15

nope, it's not b)
Answered by Steve
add 3 to both sides and you get
3x = 18
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Answered by Steve
or, since you appear to have guessed 5 because 15/3 = 5,
just be sure to divide <u>everything</u> by 3, giving you
x-1 = 5
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