exam Maths Puzzle Numerical Ability

Please help me solve this equation: 1-2/3y=9/5-y/5+3/5

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exam Other Question

how can i solve the following?

Subtract 4x2 - 5x from the sum of 9x2 - 2 and 6x - 1.
The problems that has no answer are the ones that i don't know how to do them. I worked a couple can someone correct those also for me and show me how to solve the ones that are bl