20x-y=5

x+5y=10

20x-y=5

x+5y=10

Tutors, please sign in to answer this question.

Wilton, CT

20x-y=5

x+5y=10

x+5y=10

100x-5y=25

x+5y=10

101x=35

x=35/101

substitute in second equation

substitute in second equation

35/101+5y=1010/101

5y=975 /101

y=195/101

What is the obsession with approximate answers when accurate ones are easily available?

Yes, I noticed that and changed it before I submitted but somehow the previous answer is the one that got posted. Not sure how that happened.

Greenville, SC

20x-y=5

x=10-5y

20(10-5y)-y=5

200-100y-y=5

200-101y=5

-101y=5-200

-101y=-195

y=195/101=1.93

20x-1.93=5

20x=6.93

x=6.93/20 =0.347

200-100y-y=5 is 200-101y=5

- Math 10022
- Algebra 1 4109
- Algebra 2 3522
- Word Problem 5177
- Math Help 5540
- Algebra Word Problem 2510
- Algebra Help 968
- College Algebra 1121
- Word Problems 1488
- Equations 709

## Comments