book Maths Puzzle Numerical Ability

My daughter is having problems with 2 step inequalities when it involves a fraction. Please help solve -x/5 + 2 >3. Thank you very much.

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book Other Question

Rob bought a used car for $1,500.00. If the sales tax is 5%,what would be the total rob had to pay for the car? Solve the system of equations and state if it has no solution or infinite solutions

x-y-2z=3
x-2y+z=1
3y+3z=-2