Question

1. Add x +y +2 and 2x +2y + 1​

Answer 1

Answer:

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Step-by-step explanation:

x+y+2(+)2x+2y+1

(2x+x)+(2y+y)+(2+1)

3x+3y+3

Answer 2

Answer:

x + y + 2. (1)

2x+2y+1

= 3x + 3y + 3

3 value is common

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

(1) and (2)

x = - y-1

x= y+1

(1) . . . . . .

(y+1)+y+2 =0

2y+3 =0

y = 3/2

x+3/2+2=0

x=3/2+2

x = 7/2