Question

solve this equation by substitution method.
2x+y=3
2x-3y=7​

Answer 1

Answer:

x = 2 & y = -1

Step-by-step explanation:

2x - 3y =7.......(1)

2x + y = 3.......(2)

now multiply the equation (2) by -1 and substitute from equation (1)

2x - 3y = 7

-2x - y = -3

_________

0 -4y = 4

then y = 4/-4

y = -4/4

y = -1

now put y = -1 in equation (2)

2x + y = 3

2x + (-1) = 3

2x - 1 = 3

2x = 3 + 1

2x = 4

x = 4/2

x = 2

Answer 2

Answer:

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