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.

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.