Question

solve the following by using elimination by equating substitution method

answer it step by step
please guys help me​

Answer 1

Answer:

1)-x+3y=8-----------—(i)

4x+7y=25----------(ii)

Now multiplying 4 to (i)

-4x+12y=32

eleminating y from i and ii

-4x+12y = 32

+

4x+7y=25

19y=57

y=3

substitute value of y in equation i

-4x+7(3)=32

-4x+21=32

-4x=32-21

x=-11/4

rest you can solve from same process.

Step-by-step explanation:

To solve a equation of two variables from elemination method follow the steps

• Mark two equation as (i) and (ii).
• Now you have to eleminate one variable by make same number in both equation .
• After doing so sub or add the equation according to the sign.
• After getting the value of one variable substitute in any equation ans you can solve it.