40=-0.2x+45

Question

i cant seem to solve this problem.

Answer 1

40=-0.2x+45

Subtract 45 to both sides

-5=-0.2x

now divide -0.2 to both sides

-5/-0.2=x

A negative divdes by a negative gives you a positive

5/0.2=x

You can leave that like that or find the decimal form of it.

Answer 2

40=-0.2x+45

0.2x = 45 - 40
0.2x = 5
x = 5/0.2
x = 25

Checking:

40 = -0.2x + 45
40 = -0.2 (25) + 45
40 = -5 + 45

Answer 3

Thank you sooo much!