exam Maths Puzzle Numerical Ability

ELIMINATION: How do you figure this out using ELIMINATION:
5x + 3y = 1.5
-8x - 2y = 20

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exam Other Question

Solve.
2x + 1 < 13
The solution is The problem says to multipy and simplify; 3X^2-4X-4/X^2-1*42^2+9X+5/12X^2+23X+10 will someone please help me solve this problem.