Question

SOLVE IT SO MANY POINT 3(7x+ 1) = 21

Answer 1

3(7x+ 1) = 21
21x + 3 = 21
21x = 18
x = 6/7

hope this helps!

Answer 2

First, you would simplify both sides of the equal signs, to do this, you would use the distributive property. 
21x + 3 = 21

Then, you would subtract 3 from both sides. 
21x = 18

Your final step would be to isolate the x, divide both sides by 21. 

Your answer would be x = 6/7

I hope this helps!