Question

Simplify the expression. 7(3x + 5y) + 4y

Answer 1

7(3x + 5y) + 4y
21x + 35y +4y
21x + 39y
answer: 21x + 39y

Answer 2

Answer: 21x + 39y

Step-by-step explanation: The expression can be solved by expansion. Also applying the rules of PEDMAS.

7(3x + 5y) + 4y

Expansion of brackets

21x + 35y + 4y

Collecting similar terms

21x + (35y + 4y)

= 21x + 39y