Answer:
x = -9
Step-by-step explanation:
3-2x=21
-3 -3
-2x=18
/-2 /-2
x=-9
Step-by-step explanation:
Reflect over the y-axis then reflex over the x-axis.
Yeah you did them all correct. (love your handwriting btw. its better than mine lol)
Answer:
Perimeter is 14x+12
Step-by-step explanation:
The perimeter of a rectangle is P=2L+2W, therefore the perimeter is P=2(4x+7)+2(3x-1)=8x+14+6x-2=14x+12