Question

3x-7y+10=0
y-2x-3=0
solve by substitution method
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Answer 1

Step-by-step explanation:

3x - 7y + 10 = 0 ________ 1

y - 2x - 3 = 0 __________2

from 2,

y = 2x + 3 ____________3

now put 3 in 1,

3x - 7(2x + 3) + 10 = 0

3x - 14x - 21 + 10 = 0

- 11x - 11 = 0

- 11x = 11

x = 11/-11

x = -1

now,

y = 2(-1) + 3

-2 + 3

1

hence, x = -1

and y= 1