SOLUTION: What is the answer to x+2x=3.75

Algebra ->  Radicals -> SOLUTION: What is the answer to x+2x=3.75      Log On


   

Question 572930: What is the answer to x+2x=3.75
Found 2 solutions by Maths68, mathsmiles:
Answer by Maths68(1474) About Me  (Show Source):
You can put this solution on YOUR website!
x%2B2x=3.75
3x=3.75
3x%2F3=3.75%2F3
cross%283%29x%2Fcross%283%29=3.75%2F3
x=cross%283.75%29%2Fcross%283%29
x=1.25



Check
=======
x%2B2x=3.75
Put x=1.25
1.25%2B2%281.25%29=3.75
1.25%2B2.50=3.75
3.75=3.75

Answer by mathsmiles(68) About Me  (Show Source):
You can put this solution on YOUR website!
X + 2X = 3.75

Combine terms:
3X = 3.75
Divide both sides by 3 giving:
X = 1.25