Calculate -20-15x
Example
What is -5(4+3x)
3a/2 x 4/5a
What is 6/5
If a = 3 and b = 6 find the value of 2b² - 4a
Example:

What is 72
If a$b = 2a+3b, then 4$2
Example:

What is 14
Solve 7 x 4f
Example:

What is 28f
Calculate x(y+2)-3(y+2x)
What is xy+2x-3y-6x
Calculate ax3/by x b3/a2x
What is b2x2/ay
Solve x+5 =3
What is -2
If a^b means 3a+2b, find 3^2
What is 13
Find out 5x x 4x
What is 20x2
Calculate 10(a+2b+3c)
Example:

What is 10a+20b+30c
Calculate a3/b3c2 x b2c3/a4
What is c/ab
Solve 8x+5=5x+14
What is 3
If p*q means 2p+q, find 2*3
What is 7
Calculate 3/5 x x/y
What is 3x/5y
Calculate 30x3+5x2-25x
Example:

What is 5x(6x2+1x-5)
Calculate p2q3/r x r3/pq2
What is pqr2
Find the value of 2mn × 3n if m = 4 and n = -2
What is 96
If a#b means (a-b)2, find (5#3)#2
What is 4
Solve 7x2/xy ÷ 6y/3 ÷ 4y/14
Example:

What is 49x/4y3
Calculate 9a2b+3a2+5b+5b2a
What is 3a2(3b+1)+5b(1+ba)
Solve this equation.
a2x/by2 x b3y3/ax2
What is ab2y/x
Calculate 3(x-2)-4=2(x-1)-2
What is 6
If p@q means 3p+2q, find (2@4)@2
What is 46
Calculate 7x2/xy ÷ (6y/3 ÷ 4y/14)
What is x/y