Well, first of all you have to compare 5 sweets=30p 7 sweets= x I represented the unknown with x. From here, you have to cross and multiply. 30 multiplies 7 and 5 multiplies x. And that will be 5x=210 You have to remove all that is attached to x to find out what x is. To do this, you have to divide both sides by 5. That will be; 5x/5=210/5 So; x=45 So 7 sweets cost 45p. Hope i helped.
