littlealien6597 littlealien6597

23-08-2017
Mathematics

contestada

What is the solution for the following system of equations?
4x-3y=12
x+3y=48
A. x=2 and y = 3
B. x=4 and y=3
C. x=5 and y=60
D. x=12 and y=12

Respuesta :

texaschic101 texaschic101

23-08-2017

4x - 3y = 12
x + 3y = 48
----------------add
5x = 60
x = 60/5
x = 12

x + 3y = 48
12 + 3y = 48
3y = 48 - 12
3y = 36
y = 36/3
y = 12

solution is (12,12)

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