Question

what is the value of x?
enter your answer in the box.
$x = \square$
$(10x-20)^\circ$
$(6x + 8)^\circ$

Explanation:

Step1: Recognize supplementary angles

The two angles form a straight line, so their sum is $180^\circ$.
$$(10x - 20) + (6x + 8) = 180$$

Step2: Combine like terms

Add the $x$-terms and constant terms.
$$16x - 12 = 180$$

Step3: Isolate the $x$-term

Add 12 to both sides of the equation.
$$16x = 192$$

Step4: Solve for $x$

Divide both sides by 16.
$$x = \frac{192}{16}$$

Answer:

$12$