Two equations are given below:

a − 3b = 4
a = b − 2

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

(−2, −2)
(−3, −1)
(−9, −7)
(−5, −3)

Question

Two equations are given below:

a − 3b = 4
a = b − 2

What is the solution to the set of equations in the form (a, b)?

 (−2, −2)
 (−3, −1)
 (−9, −7)
 (−5, −3)

anonymous · Answer

is it a?

nnesha · Answer

how did you get that ??
:-)

mehek14 · Answer

did you plug in the values?

anonymous · Answer

idk i kinda worked it out but im not sure..

nnesha · Answer

you can substitute a order pair into the equation 
if you get both side equal for both equation then your answer is right

mehek14 · Answer

-2 = -2 - 2
that doesn't make sense

anonymous · Answer

true.. idk what it is D: im bad at equations

mehek14 · Answer

try the second ordered pair

nnesha · Answer

there are different ways to solve two equations 
graphing 
substitution 
or plug a and y values |dw:1429459811799:dw|
you can replace a by b-2