Question

the difference between two numbers is 12. Four times the larger number is 10 times the smaller number. Write a system of equations

Answer 1

x-y=12
4x=10y

x=12+y
substitute
4(12+y)=10y
48+4y=10y
48=10y-4y
48=6y
y=8
x-8=12
x=12+8=20
x=20