exam Maths Puzzle Numerical Ability

Solve the system of equations y=2x-10 and x-y=7

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exam Other Question

How to teach determining a value or r wo the line that passes through each pair of points has the given slope.
17 (6,3), (r,2, m=1/2
Tutor I have the following problem, can you help me? Solve –2 < 2x + 1 ≤ 6

Thanks to you!