Question

va rog repede dau inima stele si coroana 50 puncte​

Answer 1

a) 2x+8x+10=180
10x=180-10
10x=170
x=17

b) x+x+30=180
2x=180-30
2x=150
x=75

c) 2x+3x=180
5x=180
x=180/5=36

d) x+50+x-20=180
2x+30=180
2x=180-30
2x=150
x=75

e) 3x+6x=90
9x=90
x=10


3x+45+2x=90
5x=90-45
5x=45
x=45/5=9

Answer 2

a) 2x+8x+10=180
10x=170
x=17
b) x+x+30=180
2x=150
x=75
c) 2x+3x=180
5x=180
x=36
d) x+50+x-20=180
2x=150
x=75
e) 3x+6x=90
9x=90
x=10
f) 3x+45+2x=90
5x=45
x=9