Question

Karla is given the equation 10x + 15 = 20 to solve. She says the solution is 1/2

Answer 1

The answer is C.

you do the inverse of positive 15, which is negative 15. so put it on both side .

10x +15 =20
-15 =-15

to equal

10x =5

then divide 10 on both side

10x = 5
----- -----
10 10


x = 5/10 or 1/2

Answer 2

The answer is c because you need to isolate the x