Question

Y - 2x =10 2x + 5y = 26

find x and y

Answer 1

x = -2

y= 6

Explanation:

y-2x=10

2x+5y=26

we isolate y on one side for the first equation

y-2x=10

+2x. +2x

y=2x+10

now we can fill in y in the second equation since we know what y equals

2x+5(2x+10)=26

2x+10x+50=26

12x+50=26

-50. -50

12x = -24

/12. /12

x = -2

now that we know x we can find y by filling in x

y-2(-2)=10

y+4=10

-4. -4

y=6

hopes this helps