exam Maths Puzzle Numerical Ability

Please help me solve the following

-3(10x - 3) + 10(3x - 3) = x - 7

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exam Other Question

Jim has a jar of dimes, nickels, and pennies. He has one dime more than five times the number of nickels and four times as many pennies as nickels. How many of each coin are in the jar if the total value is $7.77? Could you please help me with this problem?

Write an equation of the line containing the given point and parellel to the given line.

(5,8) x+4y=7