Question

find the values of variables 20-2x=18​

Answer 1

Answer:

20-2x=18

-2x=18-20

-2x=-3

x=3\2

Answer 2

Answer:

$\Huge\boxed{\mathsf{X=1}}$

Step-by-step explanation:

Isolate by the x from left to right numbers.

Subtract by 20 from both sides of an equation.

$\mathsf{20-2x-20=18-20}$

Solve.

$\mathsf{18-20=-2}$

$\mathsf{-2x=-2}}$

Then, divide by -2 from both sides of an equation.

$\displaystyle \mathsf{\frac{-2x}{-2}=\frac{-2}{-2} }}$

Solve.

$\displaystyle \mathsf{-2\div-2=1}}$

$\Rightarrow \Large\boxed{\mathsf{X=1}}}}$

So, the final answer is x=1.