Answer:
6
Step-by-step explanation:
3x plus 12= 8x -18
subtract twelve on both sides:
3x= 8x- 30
minus 8x on both sides:
-5= -30
divide:6
7x + 3y = m
3y = m - 7x
y = (m - 7x) / 3
4( r + 3 ) = t
r + 3 = t / 4
r = ( t - 3 )/ 4
2x + b = w
2x = w- b
x = ( w - b ) / 2
x (1 + y) = 2
x = 2 / 1 +y
x=45
the sum of exterior angles is equal to 360
3x+x+3x+x=360
8x=360
x= 45
هیرو فاینس تیفین nice profile pic
