Advertisements
Advertisements
Question
Find the sum of the following expressions
mn + t, 2mn – 2t, – 3t + 3mn
Advertisements
Solution
(mn + t) + (2mn – 2t) + (– 3t + 3mn)
= mn + t + 2mn – 2t + (– 3t) + 3mn
= (mn + 2mn + 3mn) + (t – 2t – 3t)
= (1 + 2 + 3)mn + (1 – 2 – 3)t
= 6mn + (1 – 5)t
= 6mn + (– 4)t
= 6mn – 4t
APPEARS IN
RELATED QUESTIONS
Add: a + b - 3, b - a + 3, a - b + 3
Add: 14x + 10y - 12xy - 13, 18 - 7x - 10y + 8xy, 4xy
Add: 3p2q2 - 4pq + 5, - 10p2q2, 15 + 9pq + 7p2q2
Add the following algebraic expression:
4xy2 − 7x2y, 12x2y − 6xy2, − 3x2y +5xy2
Subtract:
\[x^2 y - \frac{4}{5}x y^2 + \frac{4}{3}xy \text { from } \frac{2}{3} x^2 y + \frac{3}{2}x y^2 - \frac{1}{3}xy\]
Subtract the sum of 2x − x2 + 5 and − 4x − 3 + 7x2 from 5.
Solve the following equation.
`4"x"+1/2=9/2`
Find the expression to be added with 5a – 3b – 2c to get a – 4b – 2c?
Add:
xy2z2 + 3x2y2z – 4x2yz2, – 9x2y2z + 3xy2z2 + x2yz2
The expression 13 + 90 is a ______.
