Question

solve the following equation 5x/2+3=21/2​

Answer 1

Answer:

5x/2+3=21/2

We move all terms to the left:

5x/2+3-(21/2)=0

We add all the numbers together, and all the variables

5x/2+3-(+21/2)=0

We get rid of parentheses

5x/2+3-21/2=0

We multiply all the terms by the denominator

5x-21+3*2=0

We add all the numbers together, and all the variables

5x-15=0

We move all terms containing x to the left, all other terms to the right

5x=15

x=15/5

x=3

Answer 2

$\frac{5x}{2} + 3 = \frac{21}{2} \\ multiply \: this \: equation \: by \: 2 \\ ⟹5x + 6 = 21 \\ ⟹5x = 15 \\ x = 3$

So final answer is X=3