exam Maths Puzzle Numerical Ability

Solve the system of equations:
{8x-4y=12
{6x-3y=9

A. (-1, 1)
B. Dependent
C. Inconsistent
D. (1, -1)

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exam Other Question

ok. i have gotten to x=3(-9 +/-(square root of 71) /all over 10) +3
i need to figure out what x can be. thank you Two business people are arguing over how their respective companies are dealing with the economic downturn. Company A has $2.5 million in the bank, but is losing $250,000 per mont