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3 years ago

50 Points

Mathematics

2 answers:

KonstantinChe [14]3 years ago

8 0

Answer:

A) x = 15

Step-by-step explanation:

4x - 30 = 2x

subtract 2x from each side of the equation:

2x - 30 = 0

add 30 to each side:

2x = 30

x = 15

mixas84 [53]3 years ago

6 0

Answer:

$\displaystyle A) {15}^{ \circ}$

Step-by-step explanation:

remember that,

when a transversal crosses two parallel lines then the Alternate interior angles are equal that is being said

$\displaystyle 4x - 30 = 2x$

cancel 2x from both sides:

$\displaystyle 2x - 30 = 0$

add 30° to both sides:

$\displaystyle 2x = 30$

divide both sides by 2:

$\displaystyle x =15$

hence

our answer is A)

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