Question

if 2x+y=12 and 3x-y=13, find the value of x​

Answer 1

add the eq

2x+y=12

3x-y=13

we get 5x=25

x=25/5=5

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Answer 2

Answer:

Hey! Its me, again

I thank the OP for this question

OK. So, first. By the laws if exponents,

abac=ab−c

And

abc=ab∗c

8=23

So,

8x2y=23x2y

=23x−y

Since 3x-y = 12,

The answer is

212

Thanks!