Respuesta :

Dooge4

Answer:

The first one is x = 19

The second one is x = 17

Step-by-step explanation:

The first one:

(4x + 3) + (x - 8) = 90 ---> becasue the angle is 90 degrees

substitute 19 and check

The second one:

(7x + 10) + (3x) = 180 ---> because the angle is 180 degrees

substitute 17 and check

Hope this helps! :]

Answer:

see explanation

Step-by-step explanation:

(1)

The 2 angles form a right angle, thus their sum is 90°, that is

4x + 3 + x - 8 = 90, that is

5x - 5 = 90 ( add 5 to both sides )

5x = 95 ( divide both sides by 5 )

x = 19

(2)

The 2 angles form a straight angle and sum to 180°, thus

7x + 10 + 3x = 180, that is

10x + 10 = 180 ( subtract 10 from both sides )

10x = 170 ( divide both sides by 10 )

x = 17

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