What are you supposed to be doing
Step-by-step explanation:
4x - 2y = 8
y = -2
4x -2(-2) = 8
4x + 4 = 8
4x = 4
x = 1
Answer:
13.
Step-by-step explanation:
x+x+5=21
2x+5=21
2x=16
x=8
No, because 30.4+84.6+66=181
the sum of a triangle=180
so they are not similar.
Answer:
See like terms have the same variables
E.g 2x+4y-x+7y
We should take the same variable together with the same signs so here
2x-x will be 1x
4y+7y will be 11 y
So x+11y
Hope it helps!