Answer:
x= -1
Step-by-step explanation:
First to whats in the parentheses it will look like this
4x-12=-16 now add 12 to both sides
4x=-4 now you want x alone so divide 4 into -4
x=-1
wdym
circumference = 2πr
5) 2πr
=2π(7)
= 43.98 mm
7) 2πr
=2π(29) -> 58÷2=29
=182.21 yd
Y=-9 2/5
Decimal form- y= -9.4
1. y=2x-3
2. y=4x-2