I hope this helps you
x/3+y/-1=1
x/3-y=1
x-3y/3=1
x-3y=3
Answer:
80 inches
Step-by-step explanation:
a²+b²=c²
60²+b²=100²
3,600+b²=10,000
b²= 6,400
b=80
Answer:
x=2, y=7 (2,7)
Explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Answer:
The numbers are 12 and 36
Step-by-step explanation:
x + y = 48
x - y = 24
Add y to both sides of the equation
x = 24 + y
Substitute new value for x into first equation
24 + y + y = 48
Add y's together
24 + 2y = 48
Subtract 24 from both sides of the equation
2y = 24
Divide both sides of the equation by 2
y = 12
48 - 12 = 36
The numbers are 12 and 36
Hope this helps :)