Question

plz solve the above ques. Q.6

Answer 1

Let the numbers be x and y

3x + y = 142
4x = y+138 ⇒ 4x-y = 138

Add both of them

7x = 280
x = 40
and y = 22

Answer 2

hey dear



here is your answer



Solution



Let we assume number is x and y


Given


3x + y = 142. ( 1)



and also given 4x - y = 138. (2)

y = 4x - 38



and substitute the first equation in second equation


3x + 4x - 138 = 142


7x = 142 + 138



7x = 280



x = 40




then y value = ( 40 *4 ) -138


160 - 138 = 22




hence x value = 40


and y value = 22




hope it helps


thank you