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प्रश्न
Write two different algebraic expressions for the word phrase “`(1/4)` of the sum of x and 7.”
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उत्तर
First expression = `1/4(x + 7)`
As we know, the addition is commutative
So, it can also be written as = `1/4(7 + x)`.
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संबंधित प्रश्न
Add the following:
a − b + ab, b − c + bc, c − a + ac
From the sum of 4 + 3x and 5 - 4x + 2x2, subtract the sum of 3x2 - 5x and -x2 + 2x + 5.
Subtract:
\[\frac{3}{2}x - \frac{5}{4}y - \frac{7}{2}z \text { from }\frac{2}{3}x + \frac{3}{2}y - \frac{4}{3}z\]
Subtract 3x − 4y − 7z from the sum of x − 3y + 2z and − 4x + 9y − 11z.
If \[x + \frac{1}{x} = 20,\]find the value of \[x^2 + \frac{1}{x^2} .\].
If \[x + \frac{1}{x} = 12,\] find the value of \[x - \frac{1}{x} .\]
Add:
9p + 16q; 13p + 2q
Add:
2p4 – 3p3 + p2 – 5p + 7, –3p4 – 7p3 – 3p2 – p – 12
What should be added to x3 + 3x2y + 3xy2 + y3 to get x3 + y3?
At age of 2 years, a cat or a dog is considered 24 “human” years old. Each year, after age 2 is equivalent to 4 “human” years. Fill in the expression [24 + 
(a – 2)] so that it represents the age of a cat or dog in human years. Also, you need to determine for what ‘a’ stands for. Copy the chart and use your expression to complete it.
| Age | [24 +  (a – 2)] |
Age (Human Years) |
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | ||
| 6 |
