Question

15.
Solve the pair or linear equations
x - y = 2 and x + y = 2. Also find p if p = 2x + 3​

Answer 1

Answer:

if x-y=2 and x+y=2

then x=2

2× 2 +3

=4+3=7

therefore p=7

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Answer 2

Step-by-step explanation:

x-y=2

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

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

substitute equation 1 in 2

2+y+y=2

2+2y=2

2y=2-2=0

y=0---------------------(3)

substitute equation 3 in 1

x=2+0

x=2--------------------(4)

now we need to find p

p=2x+3

we know that x=2

there fore

p=2*2+3

p=4+3

therefore p=7

Hope it helps you