2x-9 4x+12=180
+9 -12
6x=177
x=29.5
2(29.5)-9=50 4(29.5)+12=130
=180
What is 2x-9 4x+12 in Supplementary form
2 answers
No idea what that means
Guessing that you have two angles 2x-9 and 4x+12 which are supplementary angles, that is,
they add up to 180°
Proper form:
2x-9 + 4x+12 = 180
6x + 3 = 180
6x = 177
x = 29.5
so your angles are 2(29.5)-9 or 50°
and 4(29.5)+12 or 130°
Guessing that you have two angles 2x-9 and 4x+12 which are supplementary angles, that is,
they add up to 180°
Proper form:
2x-9 + 4x+12 = 180
6x + 3 = 180
6x = 177
x = 29.5
so your angles are 2(29.5)-9 or 50°
and 4(29.5)+12 or 130°