Answer:
(4x+5y=7
y=3x+9
4x+5(3x+9)=7
4x+15x+45=7
19x=7-45
19x= -38
19×/19=-38/19
x= -2
whlie y=3x+9
y=3(-2)+9
y= -6+9
y=3 end solution
x= -2,y= 3
103.9
Step-by-step explanation:
13/28 still need to be mowed
Least common denominator: 28
1(7)/4(7)=7/28
2(4)/7(4)=8/28
7/28+8/28=15/28
28-15=13
13/28
Hope this helps!