Question

How many solutions does the following equation have ?

-4.2 – 7 + 10r = -7 + 6r
A) no solutions
B) Exactly one solution
C) infinitely many solutions

Answer 1

B) Exactly one solution

Explanation:

since both equations are linear, this must mean the system can only have 1 solution, where the lines can only intercept once with ech other.