Two equations are given below:

a − 3b = 16
a = b − 2

What is the solution to the set of equations in the form (a, b)?

Question

Two equations are given below:

a − 3b = 16
a = b − 2

What is the solution to the set of equations in the form (a, b)?

lyss · Answer

Is this sort of like x-3y=16, x=y-2 ?

will.h · Answer

we can solve using substitution method 

substitute the 2nd equation into the 1st 

(b - 2) - 3b = 16
solve for b 
-2b - 2 = 16
-2b = 18
b = -9

now solve for a in the 2nd equation by substituting the value of b 

a = -9 -2
a = -11

Therefor the answer is (-11,-9)