So,
All you have to do is to translate the words into open sentences with placeholders.
Apparently, there are 2 numbers, call them x and y.
Now, build open sentences.
x + y = 12
x - y = 4
Now, which method will we use to solve? I choose Elimination by Addition.
Add the equations together.
2x = 16
Divide both sides by 2
x = 8
Substitute
8 + y = 12
Subtract 8 from both sides.
y = 4
Check
The sum of the two numbers is 12 (8 + 4).
The difference of the two numbers is 4 (8 - 4).
The first number is 8.
The second number is 4.
Answer:
Find the equation of the line passing through the point (4, -1) and is perpendicular to the line having the equation: −8x−4y=−12
Step-by-step explanation:
Find the equation of the line passing through the point (4, -1) and is perpendicular to the line having the equation: −8x−4y=−12
Answer:
4 yards
Step-by-step explanation:
they gained 12 yards and then lost 8
that can be expressed as 12-8=4
Answer:
x = 4
Step-by-step explanation:
First, you subtract 1 from both sides, giving you 3x = x + 8
Then you subtract 1x from both sides, so 2x = 8
Divide the 2 from both sides which leaves you with the answer, x = 4
3x+2(x-24)=462
3x+2x-48=462
5x=562+48
5x=510
x=510/5 102 boxes of pecans
102-24=78 boxes of walnuts
Hopefully this makes since! Feel free to ask questions