Posted by **Kelly** on Saturday, February 25, 2012 at 8:20pm.

1.5x+4y=8

x+y=7

Please help me solve this system of equation and show your work.

- Math -
**Reiny**, Saturday, February 25, 2012 at 8:34pm
I would multiply the 2nd equation by 4, then subtract ...

5x+4y=8

4x+4y=28

x = -20

sub into 2nd

-20 + y = 7

y = 27

x = -20 , y = 27

- Math -
**Piggy**, Saturday, February 25, 2012 at 8:40pm
5x + 4y = 8

x + y = 7

Find x :

x = 7 - y

5(7 - y) + 4y = 8

35 - 5y + 4y = 8

-y = 8 - 35

y = 27

x = 7 + 27

x = 34

y = 27

x = 34

## Answer this Question

## Related Questions

- Math - 4x-3y=33 x=-4y-25 Please help me solve this system of equation and show ...
- Math - 4x-3y=33 x=-4y-25 Please help me solve this system of equation and show ...
- Math - 2x+y=12 3x-y=13 Please help me solve the system of equation and show ...
- Math - x+y=8 x+3y=14 Please help me solve each system of equation and show your ...
- Math - y=5x-3 y=2x+6 Please help me solve each system of equation and show your ...
- Math - y=3x-1 y=-2x+9 Please help me solve this system of equation and show your...
- Math - 4x+y=-17 -3x+y=4 Please help me solve each system of equation and show ...
- Math - 3x+3y=15 3x-6y=-12 Please help me solve each system of equation and show ...
- Math - x+y=5 x-y=3 Please help me solve this system of equation and show your ...
- Math - y=5x-2 6x+3y=15 Please help me solve this system of equation and show ...