Question

0.8x+0.3y=3.8,0.4x-0.5y=0.6 apply elimation
method

Answer 1

Answer:

Step-by-step explanation:

Answer 2

The solution is x = 4 and y = 2

Solution:

Given system of equations are:

0.8x + 0.3y = 3.8 ------- eqn 1

0.4x - 0.5y = 0.6 ----- eqn 2

Solve the system of equations

Multiply eqn 2 by -2

-0.8x + y = -1.2 ------- eqn 3

Add eqn 1 and eqn 3

0.8x + 0.3y = 3.8

-0.8x + y = -1.2

( + ) ------------------

1.3y = 3.8 - 1.2

1.3y = 2.6

y = 2

Substitute y = 2 in eqn 1

0.8x + 0.3(2) = 3.8

0.8x + 0.6 = 3.8

0.8x = 3.2

x = 4

Thus solution is x = 4 and y = 2

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