If x=a + 1 and y=a-1 is a solution of the equation 2x + 2y - 9-0, find the value of A
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Answered by
2
Answer:
hope it will help you.....
Step-by-step explanation:
2x+2y-9 = 0 ---1
putting value of x and y in equation 1
2(a+1)+2(a-1)-9=0
2a+2+2a-2-9=0
4a-9=0
4a= 9
a=9/4
Answered by
1
Answer:
2x+2y-9=0
2(a+1)+2(a-1)-9=0
(2a+2)+(2a-2)=9
2a+2+2a-2=9
4a=9
a=9/4
a=2.25
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