Question

Solve 2x+3y = 5 and 5x - 3y = -19​

Answer 1

Step-by-step explanation:

2x+3y = 5 ______(1)

5x - 3y = -19_______(2)

EQ(1) multiply by 5

10x+15y=25_____(3)

EQ(2) multiply by 2

10x-6y=-38_______(4)

now.

subtract EQ 3 and 4

10x+15y=25_____(3)

-(10x-6y=-38)_______(4)

____________________

0x+ 21y=63

y=63/21

y=21/7.

y=4

put y=4 in EQ 1

2x+3(4)=5

2x=5-12

X=7/3