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Explanation & Answer
multiply eqn 2 by 0.2
-0.02x + 0.01y =-0.22 .................eqn 2
0.02 x + 0.04y = -0.13
add both eqn
0.05y = 0.35
y = 0.35/0.05 = (35/100) *(100/5) = 7
put the value of y = 7 in eqn 2
-0.1 x +0.5 *7 = -1.1
-0.1x = -1.1 -3.5
x = 4.6/0.1 = 46
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