Question

Help please


How many solutions does the equation −2a + 2a + 7 = 8 have?

A. One
B. Two
C. None
D. Infinitely many

Answer 1

what do you think?

Answer 2

can you first combine like terms?

Answer 3

I think C

Answer 4

m = m Infinitely many
m = n no solution
(x , y) one solution

Answer 5

why'?

Answer 6

Lucky guess tbh I have no idea

Answer 7

C is right

Answer 8

can you first simplify it?

Answer 9

-2+2=0
8-7=1
0=1

Answer 10

So it would be correct :)
alays try to isolate the vaible

Answer 11

*always
*variable

Answer 12

Thanks guys

Answer 13

do you understand why?

Answer 14

Yeah