Answer:
If 7 minus 5 equals 2, then 7 minus 2 equals 5.
Step-by-step explanation:
This is because of the associative property of equality.
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Simplifying
3x + 4 = 7 + -2x
Reorder the terms:
4 + 3x = 7 + -2x
Solving
4 + 3x = 7 + -2x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '2x' to each side of the equation.
4 + 3x + 2x = 7 + -2x + 2x
Combine like terms: 3x + 2x = 5x
4 + 5x = 7 + -2x + 2x
Combine like terms: -2x + 2x = 0
4 + 5x = 7 + 0
4 + 5x = 7
Add '-4' to each side of the equation.
4 + -4 + 5x = 7 + -4
Combine like terms: 4 + -4 = 0
0 + 5x = 7 + -4
5x = 7 + -4
Combine like terms: 7 + -4 = 3
5x = 3
Divide each side by '5'.
x = 0.6
Answer: x = 0.6
20% discount makes the price $58. Sales tax brings this to $61.77.
On the website the cost is 54.75×1.09+5.99=$65.6675 for each pair.
The difference is exactly $3.8975 or $3.90 if working to the nearest cent.
For 12 pairs the difference in cost is $46.77 or $46.80 respectively.
