Question

X= 2 , y = -1 is a solution of the linear equation
(a) x + 2y = 0 (b) x +2y = 4 (c) 2x+y = 0 (d) 2x+y = 5
3. Find the value of x , 7x = 28
(a) X = 7 (b) x =21 (c) x = 4 (d) none of these
4. Find the supplement of 800
(a) 100 0

(b) 400

(c) 900

(d) none of these

5. If two acute angles of a right triangle are equal , then each acute angle measures

Answer 1

Answer:

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ans a) x + 2y = 0

put x= 2 , y= -1

2 + 2(-1) =0

2 - 2= 0