Answer:
There is no x value, as there is no solution
Step-by-step explanation:
we have
2x+y=1
Isolate the variable y
y=-2x+1 -----> equation A
4x+2y=-1 ---> equation B
Solve the system of equations by substitution
Substitute the equation A in the equation B and solve for x
4x+2(-2x+1)=-1
4x-4x+2=-1
2=-1 ------> is not true
therefore
The system has no solution
Equation A and equation B are parallel lines with different y-intercepts
Annual depreciation expenses is
[Equipment cost-residual value]÷estimated useful life
Annual depreciation expenses
(20,500−2,500)÷4=4,500
Accumulated depreciation at the end of 2 years I
4,500×2=9,000
Book value at the end of 2 years is
20,500−9,000=11,500
18 just add both of them money 15.50+12.50=28
Reverse the sign of each term you are subtracting and then add as usual. Hope this helps!
