Answer:
The first question:
x = -1
Step-by-step explanation:
Step 1 :
Pulling out like terms :
1.1 Pull out like factors :
-x - 1 = -1 • (x + 1)
Equation at the end of step 1 :
Step 2 :
Solving a Single Variable Equation :
2.1 Solve : -x-1 = 0
Add 1 to both sides of the equation :
-x = 1
Multiply both sides of the equation by (-1) : x = -1
One solution was found :
x = -1
Processing ends successfully
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Answer:
x=1
Step-by-step explanation:
7/3 x + 1/3x = 1 + 5/3 x
Combine like terms
8/3 x = 1 +5/3 x
Subtract 5/3 x from each side
8/3x -5/3x = 1 + 5/3x -5/3x
3/3x = 1
x =1
20% = 0.20
multiply original price ( $0) by 0.20 for the amount of discount then subtract it
80*0.20 = 16.00
she will save $16
80-16 = 64
she will pay $64 after the discount
Answer:12
Step-by-step explanation:
