27 is a composite number.
Start by adding 13 to both sides
19 = 4b-13
<span>19+13 = 4b-13+13
</span>32 = 4b
4b = 32
Then divide both sides by 4 to isolate b
4b = 32
4b/4 = 32/4
b = 8
So in the end, b = 8
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oh ok I think it’s 63>
Step-by-step explanation:
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Step-by-step explanation:
513=171x3
171=57x3
57=19x3
19 and 3 are prime numbers
nope not at all lol
Step-by-step explanation: