Question

Me podrían ayudar por favor?
:3

Answer 1

3) X = 4(90 - X)

X = 4 *90 - 4X

X = 360 - 4X

X + 4X = 360

5X = 360

X = 360÷5

X = 72

4) X = 3(180 - X)

X = 3*180 - 3X

X = 540 - 3X

X + 3X = 540

4X = 540

X= 540 ÷ 4

X = 135