Question

Can u please show the work on how to do the problem 5(6-4v)=v+21

Answer 1

Remember, you can do anything to an equation as long as you do it to both sides
remember the distributive property: a(b+c)=ab+ac

first, distribute

5(6-4v)=5(6)+5(-4v)=30-20v
so we gots

30-20v=v+21
add 20v to both sides
30+20v-20v=20v+v+21
30+0=21v+21
30=21v+21
minus 21 from both sides
30-21=21v+21-21
9=21v+0
9=21v
divide both sides by 21
$\frac{9}{21}=\frac{21v}{21}$
$\frac{3}{7}=v$
$v=\frac{3}{7}$

Answer 2

5(6 - 4v)=v+21
30 - 20v=v+21
30-21=v+20v
9=21v both side divided by 21
9÷21=v
0,428=v