book Maths Puzzle Numerical Ability

HELP WITH WRITING EQUATIONS FOR WORD PROBLEMS. JUST STARTING TO LEARN PRE-ALGEBRA.

#1 WORD PROBLEM:
Jordan drove his car at 60mph for the same number of hours t

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book Other Question

A box contains $17.70 in nickels, dimes, and quarters. The number of dimes is 8 less than twice the number of nickels. The number of quarters is 2 more than the sum of the number of nickels and dimes. How many coins of each kind are there in the box? i don not understand how you do this...when i do it my teacher counts it wrong...so i really need som help please...
{{{3a+2b-8c+8}}}
{{{2a-4b+6c+9}}}
{{{1a+1b+2c-6}}}