Solving the pair of linear equation by substitution method question is 0.2 X + 0.3 Y is equals to 1.3 and 0.4 X + 0.5 is equals to 2.3
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Step-by-step explanation:
0.2 X + 0.3 Y=1.3
0.4 X + 0.5 Y=2.3
0.2 X + 0.3 Y+0.2X+0.2Y=2.3
1.3+0.2(X+Y)=2.3
0.2(X+Y)=1
X+Y=5
X=5-Y
0.2 X + 0.3 Y=1.3
0.2(5-Y)+0.3Y=1.3
1-0.2Y+0.3Y=1.3
0.1Y=0.3
Y=3
X=5-Y
X=5-3
X=2
X=2 Y=3
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