## PrinceCloud Group Title solve the following linear system x-2/3 + y+1/5 = 2 x+2/7 - y+5/7 = -2 one year ago one year ago

1. PrinceCloud Group Title

$\frac{ x-2 }{ 3 } + \frac{ y+1 }{ 5 } = 2$ $\frac{ x+2 }{ 7 } - \frac{ y+5 }{ 3 } = -2$

2. mathstudent55 Group Title

Multiply the first equation by 15 and the second eqaution by 21 to get rid of denominators.

3. cwrw238 Group Title

first get rid of the fractions by multiplying each equation by the LCM of the 2 denominators which is 15 and 21 as mathstudent55 stated

4. PrinceCloud Group Title

then what

5. cwrw238 Group Title

then solve for x and y by the elimination or substitution method

6. PrinceCloud Group Title

what is the equation then?

7. PrinceCloud Group Title

8. cwrw238 Group Title

ok i'll convert the first one for you |dw:1359322885676:dw|

9. cwrw238 Group Title

now simplify it further: 5x - 10 + 3y + 3 = 30 5x + 3y = 30 + 10 - 3 5x + 3y = 37

10. cwrw238 Group Title

now follow the same procedure with the second equation

11. PrinceCloud Group Title

k thanks

12. cwrw238 Group Title

- you multiply through by 21 in this case

13. PrinceCloud Group Title

yes i know thanks alot

14. cwrw238 Group Title

you r welcome