Answer:
5) x = -1
6) x = 2
Step-by-step explanation:
5) 5 + 2x + 6 = x + 10
2x + 11 = x + 10
2x + 1 = x
1 = -x
-1 = x
6) (9x + 7) + (-3x + 20) = 39
6x + 27 = 39
6x = 12
x = 2
Answer: Infinitely many solutions
Step-by-step explanation:
If you simplify the equation 2y=14-2x and divide everything by 2 you get y=7-x or y=-x+7 which equals the second equation perfectly so there are infinitely many solutions to the system of equations
If an eagle has 3 chicks per year and we need to find how much in 8 years we simply multiply the two numbers.
So,
3 x 8 = 24
Therefore, an eagle will have 24 chicks in 8 years.
Answer:
c
Step-by-step explanation:
Since both equations express y in terms of x we can equate the right sides
3x + 5 = - x + 3 ( add x to both sides )
4x + 5 = 3 ( subtract 5 from both sides )
4x = - 2 ( divide both sides by 4 )
x = - 0.5
substitute x = - 0.5 in either of the 2 equations
using y = - x + 3 then y = 0.5 + 3 = 3.5
solution is (- 0.5, 3.5 ) → c