
Nathan B. answered 03/22/17
Tutor
5
(20)
Elementary and Algebraic skilled
Here's what we know:
a + b = 67 (two numbers equal 67)
b = a - 3 (the smaller number is 3 less)
plug in the variable value:
a + a - 3 = 67
simplify:
2a - 3 = 67
add 3 to both sides:
2a = 70
divide by 2:
a = 35
You can solve for b from here.