Mathematics: 3x+5=20 solve for x and show work

im not speak english because i m turkish...

3x+5=20 solve for x and show work - id35207787689, oofoofoof1

endyrocks19

02.02.2022

$\boxed {\tt x=5}$

Step-by-step explanation:

We want to solve for , therefore we must isolate it on one side of the equation. The equation is:

3x+5=20

5 is being added to 3x. The inverse of addition is subtraction. Subtract 5 from both sides of the equation.

3x+5-5=20-5

3x=20-5

3x=15

x is being multiplied by 3. The inverse of multiplication is division. Divide both sides of the equation by 3.

$\frac{3x}{3}=\frac{15}{3}$

$x=\frac{15}{3}$

x=5

Let's check our solution. Plug 5 in for x and solve.

3x+5=20

3(5)+5=20

15+5=20

20=20

This checks out, so we know our solution is correct.

The solution to 3x+5=20 is x=5.

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