Step-by-step explanation:
10. 12
11. 500
12.8
13.45
3x-5 does not belong
Reasoning :
Plug in “1” to each X unit
3(1) -5 = -2
12(1) = 12
1 + (1) = 2
(1)2 + 5(1) + 6 = 13
all are positive except 3x-5
so 3x-5
The total angle inside the U-shaped is 180 degree.
110 + (8x-10) = 180
8x-10 = 70
8x = 80
x = 10
2(x + 7) + x = 20
Distribute 2 inside the parentheses.
2x + 14 + x = 20
Combine like terms.
3x + 14 = 20
Subtract 14 from both sides.
3x = 6
Divide both sides by 3.
The answer is p = 5.
Here are the steps I did.
1. Simplify 8p + 10p - p - 8p + 5 to 9p + 5 ( 9p + 5 = 50)
2. Subtract 5 from both sides ( 9p = 50 - 5)
3. Simplify 50 - 5 to 45 ( 9p = 45)
4. Divide both sides by 9 ( 45/9)
5. Simplify 45/9 to 5 ( p = 5)
