exam Maths Puzzle Numerical Ability

can you please help me with this graphing problem

4x-5y=-2
3y-x=-3

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exam Other Question

Solve each system by using both the substitution and addition methods:

A. 4x-y=6
x-y=0

B. 5x+2y=1
x-3y=7 How many kilograms of water must be evaporated from 50 kg of a 10% salt solution to obtain a 15% salt solution?