2x+7=19
if there are 1500 pupils and 2/5 walk toshool and 20% cycles how many puplis do nethier?
x+30=5
(0,5+[(∛3,85) 1/5 ]⁰ + 1000/2000 + (15683 ⁰)¹⁵⁸ / [(25683 ÷ 180 / 250 x 12)² ]⁰ x 2²^² ÷ 16) ⁵√2³² - 2³⁰ = ?
5x=35
406 times 209
2/5 of a number
(3x+ 1)³- (2x⁴+ 1).(-3x²- 2)
(-6+3ab)*((9*a^(2)*b^(2))-36)*(6-3ab)
x-12=7
