Answer:
9
Step-by-step explanation:
25-7=18
half of 18 is 9
I’m. It sure but I need points so sorry
Answer:
Last option: x = -5
Step-by-step explanation:
-3x + 25 = 40
-3x = 40 - 25
-3x = 15
3x = -15
x = -5
Answer:
The solution set is (6,3)
Step-by-step explanation:
Begin by multiplying equation 1 by 2. You'll see why in a moment
2y = 2*(1/2) x
2y = x
Substitute this value into equation 2.
2y + 4y = 18 Combine like terms on the left
6y = 18 Divide both sides by 6
6y/6 = 18/6 Do the division
y = 3
To solve for x just use the top equation
y = 1/2x
3 = 1/2x Multiply by 2
3*2 = x
x = 6