Add the following terms: `3a-4b`, `5c-7a+2b`

Add the following terms: x-2y , 3x+4y

Add the following expressions . 3a-4b,5c-7a+2b

Add the following terms: 4m^2-7n^2+5mn , 3m^2+5n^2-2mn

Add the following fractional numbers - 1/3 + 7/5

Simplify the following . 3a^(2)-4a^(2)b+7a^(2)-b^(2)-ab

Find the values of a, b, c and d from the following equation: [(2a+b,a-2b),(5c-d,4c+3d)]=[(4,-3),(11,24)]

Simplify the following:(a-2b+5c) (a-b)-(a-b-c) (2a + 3c) + (6a + b) (2c-3a-5b)

Workout the following divisions : 11a^3 b^3 (7c-35) ÷ (3a^2b^2(c-5)) .

Simplify the following : (a+2b+3c)(a+b)-(a-b-c)(2a+3c)+(2a+b)(2c-2a-4b)

Simplify the following : (a + 2c) + (3a + 5b) (c - 2a - 9b)