Question

2x+7y=10;2x-2y=-8 by elimination method​

Answer 1

Step-by-step explanation:

2x+7y = 10

2x-2y = -8

subtracting eq. 1 and 2

9y = 18

y = 2

putting the value of y in eq 1

2x+7y = 10

2x+7×2 = 10

2x = 10-14

2x = -4

X = -2