Answer:
x = 0.85; y = 0.15
Step-by-step explanation:
Let the larger number = x
Let the smaller number = y
Equations
x + y = 1
x - y = 0.7
Solution
Find x
Add the equations together.
x + x = 1 + 0.7 Combine like terms.
2x = 1.7 Divide both sides by 2
2x/2 = 1.7/2
x = 0.85
Find y
x + y = 1 Substitute for x
0.85 + y = 1 Subtract 0.85 from both sides
0.85 - 0.85 + y = 1 - 0.85
y = 0.15