Question

Linear equation in 2 variables substituting method 1. x+2y =-1 and 2x+3y=-2​

Answer 1

Answer:

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-7, 4

Step-by-step explanation:

x+2y = 1

x = 1-2y

2x+3y = -2

2(1-2y)+3y = -2

2-4y+3y = -2

2-y = -2

2+2 = y

y = 4

x = -7

Answer 2

Answer:

X=-1

y=0

Step-by-step explanation:

x+2y=-1---------------------------(1)

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

From ean (1)

X+2y=-1

X=-1-2y---------------------------(3)

substitute the value of X in eqn 2

2(-1-2y)+3y=-2

-2-4y+3y=-2

-y=-2+2

Y=0

substitute the value of y in eqn 3

X=-1-2y

X=-1-2×0

X=-1

X=-1

y=0

Hope it helps you.