7(7 + 9)
They are: 78 and 63
"x" is the symbol for product or multiple: not sum. Consequently the question is unclear.
278
63
The product of any two numbers is the answer to the multiplication sum. For example, in the sum 7 x 9 = 63, the number 63 is the product.
3 (21+5)
7(7 + 9)
The questioner needs to make up his/her mind whether the question is about the sum or product.
445
They are: 78 and 63
"x" is the symbol for product or multiple: not sum. Consequently the question is unclear.
7+9=16 7x9=63 63-16 = 47
7 & 9 7 + 9 = 16 7 X 9 = 63
278
63
38 + 62 = 100 38 x 62 = 2,356