Question

solve the simultaneous equations 0.4x + 2y = 10,0.3x + 5y = 18.​

Answer 1

Answer:

x=10

y=3

Step-by-step explanation:

(0.4x+2y=10)*5

(0.3x+5y=18)*2

To cancel y in both equations I have done the above step

Now,

2x+10y=50-----1

0.6x+10y=36------2

Subtract 2 from 1

We get 1.4x=14

x=10

Sub x in any of the equations to get the value of y

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Answer 2

Answer:

x=10, y=3

Step-by-step explanation:

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