Question

solve for x and y 2x+3y=7 4x +6y=15 by substitution method​

Answer 1

Answer:

x=2   &   y=1

Step-by-step explanation:

2x+3y=7    ---1

4x+6y=15   ---2

multiply equation 1 by 2

4x+6y=14

4x=14-6y    ---3

put equation 3 in equation 2

14-6y+6y=15

14+y=15

y=15-14

y=1

put y in equation 1

2x+3y=7

2x+3=7

2x=4

x=4

   2

x=2