Question

Solve for x and y : 3x - y+7/11 +2=10 ; 2x+ x+11/7=10

Answer 1

Answer:

x=2.8 , y=1.03

Step-by-step explanation:

1. from given second equation 2x+x+11/7=10 then 3x=10-11/7
2. 3x=59/7
3. then x=59/21 =2.8
4. substitute 'x' value in first equation ,
5. then 3(2.8)-y+7/11+2=10
6. 8.4-y+7/11-8=0
7. 92.4-11y+7-88=0
8. 11.4-11y=0 ,11y =11.4 ,y=11.4/11
9. therefore,y=1.03