Answer:
class a- 10
class b- 15
Step-by-step explanation:
Answer:
15.4 m
Step-by-step explanation:
For this case we have that by definition, a linear equation is of the form:

The variable (s) involved in the equation always have exponent 1.
Some examples of linear equations are:

Answer:
In a linear equation the variables have exponent 1.

Answer:
x = -3
Step-by-step explanation:
16x − 4 + 5x = -67
Combine like terms
21x -4 = -67
Add 4 to each side
21x-4+4 = -67+4
21x = -63
Divide each side by 21
21x/21 = -63/21
x = -3
X is the undefined variable hope it helps