exam Maths Puzzle Numerical Ability

Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent. Problem 12 is reminiscent of Examples

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exam Other Question

Two buses leave Houston at the same time and travel in oppisite direction. One bus averages 55 mi/h and the other bus averages 45 mi/h. When will they be 400 mi apart? The second side of a triangle is 1 centimeter more than three times the first side. The third side is 2 centimeters longer than the second side. If the perimeter is 46 centimeters, find the lengh of each side of the triangle