Question 1170001
Solve the following pair of simultaneous equations.
 3/5x -4y = -1

0.8x - 3.5y = 1/2
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Eliminate fractions:
3x - 20y = -5
8x - 35y = 5
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24x - 160y = -40 ---- 1st eqn times 8
24x - 105y = 15 --- 2nd eqn times 3
--------------------------------------------------- Subtract
-55y = -55
y = 1
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Sub y=1 into any eqn and find x