In a very long toy train, the first and last cars were blue. After each blue car (except the last one), there were two yellow cars. After
each pair of yellow cars, there was a red car. After each red car,
there was a blue car. The first five train cars are shown in the
picture. Oleg picked a car and recolored all cars in front of it green.
Then Joyce picked a car and recolored all cars behind it green.
What is the least possible number of non-green cars in the
recolored toy train if it contains 7 more yellow cars than blue cars?

Wdym lol

Step-by-step explanation:

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions