SAT Math Practice Question #10570 - SATify | SATify
#10570
linear equations
equations
systems
hard
75 sec
If 2(m+n)−5(m−n)=15 and 4(m+n)+5(m−n)=33, what is the value of 3(m+n)?
• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-). • Fractions must be in lowest terms. • Mixed numbers must be converted to improper fractions.
