Question

Two angles are supplementary , one angle is 3 less than twice the other. find the dimensions of all angles

Answer 1

x+y=180

Answer 2

y=3-x

Answer 3

is this part right?

Answer 4

the second equation should be
y = 2x - 3

Answer 5

ok im stuck here

Answer 6

x+(2x-3)=180

Answer 7

3x+3=180?

Answer 8

x+y=180 ... (1)
y=2x-3 ... (2)

subtitute the 1st equation too the 2nd
x+2x-3=180
3x-3=180

add both sides by 3
3x-3+3 = 180+3
3x = 183

Answer 9

61

Answer 10

so the smaller angle would be 61 and larger 119?

Answer 11

that's right
then subtitute again the 2nd equation to get y

Answer 12

yup

Answer 13

thank you!

Answer 14

you're welcome :)