Answer:
1. Linear
2. Nonlinear
3. Linear
4. Linear
5. Nonlinear
Step-by-step explanation:
Thies equation are in the form y=mx+b. Where m is the slope and b is the y-intercept. To solve them you neeed to see the power x is taken to. If the power on x is bigger than 1 than one, then it will curve at some point. This makes 2 and 5 nonlinear
3
x
6
+
5
−
4
2
1
simp
60
4*5*3=60
x-7
unknown number = x