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प्रश्न
Find the sum of the following expressions
a + 5b + 7c, 2a + 10b + 9c
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उत्तर
(a + 5b + 7c) + (2a + 10b + 9c) = a + 5b + 7c + 2a + 10b + 9c
= a + 2a + 5b + 10b + 7c + 9c
= (1 + 2)a + (5 + 10)b + (7 + 9)c
= 3a + 15b + 16c
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संबंधित प्रश्न
Subtract 3xy + 5yz − 7zx from 5xy − 2yz − 2zx + 10xyz.
Add: 14x + 10y - 12xy - 13, 18 - 7x - 10y + 8xy, 4xy
Subtract:
\[x^2 y - \frac{4}{5}x y^2 + \frac{4}{3}xy \text { from } \frac{2}{3} x^2 y + \frac{3}{2}x y^2 - \frac{1}{3}xy\]
Add:
17a2b2 + 16c; 28c − 28a2b2
Add:
3y2 − 10y + 16; 2y − 7
The expressions 8x + 3y and 7x + 2y cannot be added
Find the sum of the following expressions
5xyz – 3xy, 3zxy – 5yx
Simplify: p + p + 2 + p + 3 + p – 4 – p – 5 + p + 10
Add the following expressions:
p2 – 7pq – q2 and –3p2 – 2pq + 7q2
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 |
