exam Maths Puzzle Numerical Ability

3x+2y=-6

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exam Other Question

Combine and Simplify: (square root of)160 - (square root of)490

a) -(square root of)320
b) -3(square root of)10
c) -30
d) -3
e) None of these solve and write interval notation for the solution set. Then graph the solution

-3 less than or equal to 3x + 1 less than or equal to 5