100
x(5).x(4)
What is x(9)
100
x+3y=13
x+y=5
What is x= 1 y=4
200
t(3).t(6)
What is t(9)
200
7x-5=2y
3y=16-2x
What is y=6 x=-1
300
5a+b=13
4a-3b=18
What is a=3 b= -2
400
x+2y=11
y=x+5
What is x=-1 y=-2
500
x(2).c(2)
What is x(2)c(2)
500
(-8c)(4)
What is 4,096
500
2x+3y=8
x-3y=13
What is y=-2 x=1