Question

3) 2x+3y=9 3x+4y=5 Solve each pair of equation by using the substitution method. 1) 3.x - 5y = -1 2) x+2y = - 1 x - y = -1 2x - 3y = 12 6 7) * +- 5) 0.2x + 0.3y = 1.3 y 6) √x + √ - :6 8 3x - - =5 5 y 0.4x + 0.5y = 2.3 √3x - √​

Answer 1

Answer:

your ans

Step-by-step explanation:

We have,

2x + 3y = 9 …(i)

3x + 4y = 5 …(ii)

From equation (i),

2x + 3y = 9

⇒ 2x = 9 – 3y

…(iii)

Substituting the value of x from equation (iii) in equation (ii), we get

⇒ 27 – y = 10

⇒ y = 27 – 10

⇒ y = 17

Putting this value of y in equation (iii), we get

⇒ x = -21

Thus, we get the solution as x = -21 and y = 17.