exam Maths Puzzle Numerical Ability

1/3(y-3)=y-7

2(n-5)=-(2-2n)

5x-2y=7 solve for y

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exam Other Question

Please help me solve this: Clifford "TI" Harris went on a weekend trip. He averaged 35mi/h in the city and 60mi/h on the highway. If the 150mi trip took 3hrs, how much of the time was he driving in the city. Solve the following system by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent
10x+2y=7
y=-5x+3