8x−2=−9+7x
Simplify:
8x−2=−9+7x
8x+−2=−9+7x
8x−2=7x−9
Subtract 7x from both sides.
8x−2−7x=7x−9−7x
x−2=−9
Add 2 to both sides.
x−2+2=−9+2
x=−7
Answer:
217 is the perfect swuare i think
Answer:
because each output has exactly one input
1. If x-2≥0, x≥2
x-2+10=12
x+8=12
x=12-8
x=4
2.If x-2≤0, x≤2
-(x-2)+10=12
-x+2+10= 12
x = 0
Answer: A) x=0 and x=4
