Math, asked by belli13, 11 months ago

Find the solutions of equations 0.4x + 3y = 1.2;7x – 2y =17/6

Answers

Answered by raguld
3

Answer:

X = 0.5 or 1/2

Y = 0.33 or 1/3

Step-by-step explanation:

0.4X + 3Y = 1.2

3Y = 1.2 - 0.4X

Y = (1.2-0.4X)/3____(1)

Substitute eqn 1 in other given equation

7X - 2Y = 17/6

7X - 2((1.2 - 0.4X)/3) = 17/6

21X - 2.4 + 0.8X = 17/2

21.8X = 17/2 +2.4

21.8X = 21.8/2

X = 1/2 or 0.5

Y = (1.2 - 0.4*0.5)/3

Y = 1/3 or 0.33

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