The three steps shown below were used to find an expression equivalent to 2/5 (15x- 30y) +10x

step 1: ?

step 2: 16x - 12y

step 3: 4(4x - 3y)

which expression could be used as step 1?

a) 2/5 (25x - 30y)
b)6x -12y +10x
c)6x - 30y +10x
d)15(x -2y) + 10x

option B is correct

Step 1.

Step-by-step explanation:

Given the expression:

Using distributive property:  

Apply distributive property in the given expression we get;

Combine like terms;

Now, factor a number means to break it up into numbers that can be multiplied together to get the original number

Therefore, the expression could be used  step 1 as,  

Three steps are:

Step 1.

Step 2.

Step 3.

what?

step-by-step explanation:

what do you need with. i love quadrants. can you tell me ?

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