Question

The growth of one child is represented by the expression 5x – 1. The growth of a second child is represented by the expression 2x + 3.
Complete and simplify the expressions to represent the total growth of both children.

Answer 1

5x-1=2x+3

subtract 2x from both sides.

3x-1=3

add 1 to both sides.

3x=4

3/4 is .75

answer is 3/4