Which expressions are equivalent to -2(5x-1)+7(5x-1)-3(-5x+1)

x=1/5

Step-by-step explanation:

To solve this question we will have to open the bracket first

So let's go back to the given question

-2(5x-1)+7(5x-1)-3(-5x+1)

We can actually equate the equation to zero

Let's solve

-10x+2+35x-7+15x-3=0

Let's collect like terms

-10x+35x+15x=-2+7+3

40x=8

Let's make x the subject of formula by dividing both sides by 40

x=1/5

So the final answer is 1/5

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

0.02040816326