Question

2x + 3y =5, y-x=10, 3x +4y=

Solve it plzzzz.​

Answer 1

Answer:

Question

2x + 3y = 5 , y - x = 10 , 3x + 4y = ?

Answer

Let the value of y = 10 + x

Then put the value of y in the equation

2x + 3y = 5

=> 2x + 3(10+ x ) = 5

=> 2x + 30 +3x = 5

=> 5x + 30 = 5

=> 5x = 5 - 30

=> 5x = -25

=> x = -25/5

=> x = -5

Now, find the value of y,

First of all put the value of x in the equation

2× (-5) + 3y =5

=> -10 + 3y = 5

=> 3y = 5 + 10

=> 3y = 15

=> y = 15/3

=> y = 5

Then find the value of 3x + 4y =?

Given : x = -5 and y = 5

3× (-5) + 4 × 5

=> -15 + 20

=> 5

Therefore, 5 is your answer!

Hope it helps you ✌✌

Follow me ✔️