Question

solve the following equation
1) x+2y+3x=11
2x+4y-z=13
3x+4y-5z=3

Answer 1

Step-by-step explanation:

1) x+2y+3x=11

4x+2y=11

2y=11-4x

2y=11-4*1

2y=11-4

2y=7

y=7/2

y=3.5

x=1 y=3.5