exam Maths Puzzle Numerical Ability

how can i solve the following?

Subtract 4x2 - 5x from the sum of 9x2 - 2 and 6x - 1.

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exam Other Question

dentify the equation whose graph has a slope of 2 and a y-intercept of -3. Please help me solve this equation: 1-2/3y=9/5-y/5+3/5