Question

5. Use substitution to solve: *y = 9x-2y = 3x+10(1, 13)(4,2)(2,16)(1, -3)

Answer 1

Given -

y = 9x-2

y = 3x+10

To Find -

Value of x and y using substitution method =?

Step-by-Step Explanation -

By substitution method,

y = 9x-2 ........(1)

y = 3x+10 ...........(2)

Put the value of y from equation (1) in equation (2)

So,

9x - 2 = 3x + 10

9x - 3x = 10 + 2

6x = 12

x = 12/6

x = 2

So, Putting x = 2 in equation (1), We get:

y = 9(2) - 2

y = 18 - 2

y = 16

Final Answer:

Option (c)

(2, 16)