5x +2y=-9 3x+4y= -11
RESOLVERLO POR EL METODO DE SUBSTITUCION PORFAVOR EN UN FOLIO Y LE HACEIS UNS FOTO​

The weight of an object in a particular scale is 175.2 lbs. the measured weight may vary from the actual weight by at most 0.1 lbs. what is the range of actual weights of the object

Which value would be a solution for x in the inequality 47-4x< 7

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.