Question

Question 2

Over a span of just a few years, scientists discovered x new
bird species, 4x + 18 new species of fish,
3x +4 new species of amphibians, and 2x – 14 new reptile
species.
How can you write and simplify an expression that
represents the total number of pecies that were discovered
during this time period?

Answer 1

10x + 8 species

Step-by-step explanation:

Given :

1. New bird species = x
2. New species of fish = 4x + 18
3. New species of amphibians = 3x + 4
4. New reptile species = 2x - 14

Solving :

• Total discovered species = sum of the discovered species
• Total = x + 4x + 18 + 3x + 4 + 2x - 14
• Total = 10x + 8 species

Answer 2

Total species: 10x + 8

Step-by-step explanation:

Add the algebraic expressions:

Total species = bird + fish + amphibian + reptile

= (x) + (4x + 18) + (3x + 4) + (2x - 14)

group the variables

= x + 4x + 3x + 2x + 18 + 4 - 14

add/subtract integers

= 10x + 8