The following set of linear equations 2x+2y=18 x+3y=17
1 answer:
Answer:
x = 5
y = 4
Step-by-step explanation:
1. 2x + 2y = 18
2. x + 3y = 17
Multiply the first equation by 1 and the second equation by 2 to eliminate x
We have
2x + 2y = 18
2x + 6y = 34
Subtract equation 2 from equation 1
-4y = -16
Divide both sides by -4 to isolate y
-4y/-4 = -16/-4
y = 4
Now substitute 4 for y in either equation to get x. Using equation 2 we have
x + 3y = 17
x + 3 x 4 = 17
x + 12 = 17
Subtract 12 from both sides
x + 12 - 12 = 17 - 12
x = 5
x = 5 and
y = 4
You might be interested in
Sector area= theta/360 x πr^2
Radius= 24/2= 12
Sector area= 120/360 x π(12)^2
Final answer :
Sector area = 48π
Answer:
51 degrees Celsius
Step-by-step explanation:
123 degrees Fahrenheit=50.5556 degrees Celsius rounded to the nearest degree would be 51 degrees Celsius
Answer:
18
Step-by-step explanation:
Given
4(n - 4) + 14 ← substitute n = 5 into the expression
= 4(5 - 4) + 14
= 4(1) + 14
= 4 + 14
= 18
Answer:
21.3y + 12x
Step-by-step explanation:
Answer:
Micheal could rewrite the equation as negative 8 + negative 3 and move 3 spaces to the left.
Step-by-step explanation:
-8 - 3 = -8 + (-3)