exam Maths Puzzle Numerical Ability

Solve the system of equations.

2x + y = 0

x - 3y + z = 0

3x + y - z = 0

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exam Other Question

find the value of {4+5}x{6-3} A health food store combined cranberry juice that cost $1.79 per quart with apple juice that costs $1.19 per quart. How many quarts of each were used to make 10 qt of cranapple juice costing $1.61 per quart?