exam Maths Puzzle Numerical Ability

Is 7 a solution of the equation 4x-2=3x+5?

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exam Other Question

when a smaller number is subtracted from a larger number, the difference is 34. if the larger number is 30 less than 3 times the smaller number, what are the two numbers? Please help me solve the following equation:

5/2y+6 + 1/y-2 = 3/y+3



Thank you!!!