Question

Find each expression that is not correct when a = 5. Write it correctly and explain the error.

a) a + 9 = 14

b) 6.95 + a = 7

Answer 1

a) a + 9 =14
5 + 9 =14

b) 6.95 + a =7
6.95 + 5 = 11.95

b, is wrong, because the result should be 7 no 11.95 :D

Answer 2

a) This expression is correct, as 5 + 9 = 14

b) The mistake made here is that they have done 6.95 + 0.05, instead of + 5, because 6.95 + 5 = 11.95

I hope this helps!