Answer:
9x is the answer
Step-by-step explanation:
-x-(-10x)
-x+10x
9x
Answer:
x= 16
y= -13
Step-by-step explanation:
x+y=3
x-3y=-29
Eliminate x and subtract the equations
2y=-26
y= -13
Plug in y for first or second equation
x=16
3= similar angles therom.