Q 13 /
G___R___L
GL= GR + RL
GL = ( 6x - 3) + (2x+9) = 8x +6
GR = RL
6x - 3 = 2x+9
6x -2x = 9+3
4x = 12 —> x= 12/4 —> x = 3
GR = 6x - 3 = 6(3)-3= 18 -3 =15
RL= 2x+9 = 2(3)+9= 6+9=15
GL = 8x +6 = 8(3)+6=24+6=30
or ; GL= GR + RL = 15+15= 30
SO ;
GR = 15
RL = 15
GL = 30
______o____o______
Q 14 /
m < IFD = m< WFD + m< IFW
125 = (x - 10) + ( 2x + 15)
125 = 3x + 5
3x = 125 - 5
3x = 120
x= 120/3
x = 40
m< WFD = x - 10 = 40 - 10 = 30
m< IFW = 2x +15 = 2(40) + 15 = 80 + 15 = 95
So;
x = 40
m< IFW = 95
m< WFD = 30
I hope I helped you^_^