Solve each system by subst
1) y= 63-11
-2x-3y=-7

y= 63-11

y= 52

-2x-3y=-7

-2x-3(52)= -7

-2x-156= -7

move -156 to the other side

sign changes from -156 to +156

-2x-156+156= -7+156

-2x= -7+156

-2x= 149

divide both sides by -2 to get x by itself

-2x/-2= 149/-2

x=- 149/2

(-149/2, 52)

answer: hey there,

the answer you are looking for is a..

hope this you!

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: