Solve the following systems of equations:

0.4x + 0.3y = 1.7
0.7x − 0.2y = 0.8

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Solution

The given equations are:

…

…

Multiply equation by 2 and equation by, and add both equations we get

Put the value of in equationwe get

Hence the value of and

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Similar questions

0.4 x + 0.3 y = 1.7 0.7 x - 0.2 y = 0.8

0.4 x + 0.3 y = 1.7

0.7 x - 0.2 y = 0.8

0.2 x + 0.3 y = 1.3

0.4 x + 0.5 y = 2.3

0.2 x + 0.3 y = 1.3

0.4 x + 0.5 y = 2.3

Solve, using cross-multiplication

$0.4 x - 1.5 y = 6.5 0.3 x + 0.2 y = 0.9$

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