System of equations
2x+1=5

x=2 :)

2x+1-1=5-1

2x=4

2/2x=4/2

x=2

if you do the opposite on one side you gotta do it on the other :)))

x=2

Step-by-step explanation:

2x+1+5   move constant to right-hand side and change its sing

2x+5-1 subtract the numbers

2x+4  Divide both sides of the equation by 2

-2/

answer: 10 turtles

step-by-step explanation: as turtles have four legs so 4.10=40 therefore birds are 4 which sue counted