The Answer is 12....
LET ME EXPLAIN!!
3x + 4y = 52
5x + y = 30 |• (-4)
+
3x + 4y = 52
-20x - 4y = -120 |• Add those up. ____________
-17x = -68 |• (-17)
X = 4
Since you found that out you put the Value of x to the second equation like so:
5(4) + y = 30
20 + y = 30 | -20
y = 10
Now we know the other Equation times to add/subtract all the answers that is given so:
8x - 2y = 8(4) - 2(10) = 32 - 20 = 12
So The answer is 12...
Hope this helps you Have a good day...
