Question

Together a computer, monitor, and printer cost $1935. the monitor cost $400 less than the computer, the printer cost $50 more than the monitor. Find the cost of the printer.

Answer 1

C: computer
m: monitor
p: printer
c+m+p=1935
m+400=c
p=m+50
substitute the last two equations into the first one:
m+400+m+50+m=1935
3m=1485
m=495
Substitute into the other equations
c=495+400=895
p=495+50=545