How do you solve this step by step?

-6

Step-by-step explanation:

Well first go to the left and to the which equals -8.

Subtract that from -9 which then equals -1. now go to the left side.

which equals -4.

Add that to 9 which is 9-4=5

Now (-1) - 5 the number your subtracting from does not have any positives so you have to add some. long explanation just follow me.

Now when the positive have been added on you will come out with -6.

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