math
posted by Ronnie on .
Solve each equation. What am I doing wrong because the answer is suppose to be 11/2 and I don't get the answer. Here's what I'm doing...
Problem: 2x+1/43x4/5=1/2
I get: 10x+512x16=10
Which gives me 2x=21
My answer is 21/2
the correct answer is suppose to be 11/2

The way you typed it ...
2x+1/43x4/5=1/2
x = 1/2  1/4 + 4/5
x = 21/20
x = 21/10 or 1.05
check:
LS = 2(1.05) + .25 3(1.05)  .8 = .5
RS = 1/2 = .5
My answer works for the way you wrote the equation
RS =