Asha and Lucy are selling pencils in a school shop. They sell boxes of pencils and single pencils. Asha sells 7 boxes of pencils and 22 single pencils. Lucy sells 5 boxes of pencils and 2 single pencils. Asha sells twice as many pencils as Lucy. Work out how many pencils there are in a box
+36916 L = 5 b + 2
A = 2 *L = 2 (5b+2) = 7b+22
10b + 4 = 7b+22
3b = 18
b = 6 pencils
