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Answer:
1. a=3
2. a=3
3. a=9
Step-by-step explanation:
1. 9/a+9-4=12-56/8+3
We move all terms to the left:
9/a+9-4-(12-56/8+3)=0
Domain of the equation: a=0
a∈R
We add all the numbers together, and all the variables
9/a+9-4-8=0
We add all the numbers together, and all the variables
9/a-3=0
We multiply all the terms by the denominator
-3*a+9=0
We add all the numbers together, and all the variables
-3a+9=0
We move all terms containing a to the left, all other terms to the right
-3a=-9
a=-9/-3
a=+3
The answer is x=-2
Solve for X by simplifying both sides of the equation, then isolating the variable.
Answer:
2.78 pounds
Step-by-step explanation:
Set up an equation. Represent the bananas bought with x.
Total pounds of fruit = pineapple + cherries + bananas
8.67 pounds = 2.8 pounds + 3.09 pounds + x bananas
Combine like terms.
8.67 = 5.89 + x
Subtract 5.89 from both sides.
2.78 = x
<u>He bought 2.78 pounds of bananas.</u>