Question

Answer and please explain these i'm literally going to fail I can't do this :<
1)7x+3=2x+23
2)5-x=8-x
3)5(1+x)=5x=5

Answer 1

Answer:

7x + 3 = 2x + 23

collect like terms

7x-2x=23-3

5x=20

divide both sides by 5

x=4

5-x=8-x

collect like terms

5-8=-x+x

-3=0

5(1+x)=5x-5

open the bracket

5+5x=5x-5

5+5=5x-5x

10=0