Posted by Tasha on .
40=0.2x+45
i cant seem to solve this problem.

Algebra 
Chopsticks,
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. 
Algebra 
Ms. Sue,
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 
Algebra 
Tasha,
Thank you sooo much!