Question

Use the method of elimination to solve the
following equations: 9x+12y=30;8x+2y=18​

Answer 1

Answer:

x = 2 & y = 1

Step-by-step explanation:

9x + 12y = 30............ eq. 1

8x + 2y = 8............eq.2

Now multiply the eq. 1 by 1 and 2nd eq. By 6 then,

9x + 12y = 30........ 3 eq.

48x + 12y = 108........4 eq.

Now,

Subtract the eq. 3 and 4 eq. Then we eliminate the y and get value the x

Now, x = 2 then

Put the value in eq. 1 get the value of y = 1