4y+2x=14 ==> multiply this 1st equation by (-1) => -4y-2x=-14
Now add it up to the 2nd equation
-4y-2x=-14
2y+2x=10
-------------- And now add them up
-2y +0x=-4
==> -2y=-4==> 2y = 4 & y=2
Last step: plug y into any equation & you will find x=3
6.75 in by 5 in. the area is 33.75
8000 is 80*100. Use a calculator if you can't solve this in your head. c:
Answer: Isolate the variable by dividing each side by factors that don't contain the variable. x=−1/2^2
Step-by-step explanation:
