Question

it's math question pls solve it fast

Answer 1

Answer:

42) 5/8, 43) 4, 44) IDK, 45) 10cm

Step-by-step explanation:

42) 3/4-1/8

= 5/8 (Answer)

43) 1/2x+10=12

or, 1/2x=12-10

or, 1/2x=2

or, 1=4x

or, x=4 (Answer)

44) I forget this chapter, cuz I did it 4-5 years ago.

45) 80=30+30+2x

or, 80= 60+2x

or, 80-60=2x

or, 20=2x

or, 10=x (Answer)