Question

Qn.12 a)Three times a number added to two times another number gives 33 . Taking the numbers as x and y form an equation using this idea ? b)When three times the second number is subtracted from 4 times the first number go 10. Using this idea form another equation ? c)Find the numbers ? 42​

Answer 1

Step-by-step explanation:

Supposed first number is X.

And another number is Y.

By first condition,

4X+3Y=43…. (1)

By second condition,

3X-2Y=11……(2)

Multiplying first by 2 and second by 3.

8X+6Y=86

+9X-6Y=33

We get, 17X=119

I. E. X=119/17

X=7

Substitute X=7 in equation 1 st .

28+3Y=43

3Y=43–28

3Y=15

Y=5.

This number are (7,5) .