Answer:
c
Step-by-step explanation:
Answer: the answer is B
Step-by-step explanation:
M= 276 31+276=307.
307-31=276 that’s how I found M
-10x-10 = -3x+4
+3x +3x
————————
-7x-10 = 4
+10 +10
————————
-7x = 14
then divide -7 on both side of the equal sign
you’ll get x=-2
then plug in -2 as x into one of the equations ( it doesn’t matter which one)
y= -10(-2)-10 = 20-10= 10
so y=10
8/10
4x2=8
5x2=10
this is how you know they are equal