Respuesta :

igoroleshko156

Answer:

x = 15

Step-by-step explanation:

If angles are complimentary, they add up to 90 degrees

Step 1:  Make an equation

x + (3x + 30) = 90

Step 2:  Solve for x

x + (3x + 30) = 90

x + 3x + 30 = 90

4x + 30 - 30 = 90 - 30

4x / 4 = 60 / 4

x = 15

Answer:  x = 15

wegnerkolmp2741o

Answer:

A. 15

Step-by-step explanation:

Complementary angles add to 90 degrees

<1 +<2 = 90

x+ 3x+30 = 90

Combine like terms

4x +30 = 90

Subtract 30 from each side

4x+30-30 = 90-30

4x= 60

Divide by 4

4x/4= 60/4

x = 15