You did the one last to it on the bored.
What is base ten blocks??
-1*/x+3y=12
<span>-4x+3y=-3
-x-3y= -12
-4x+3y= -3
+-------------------
-5x= -15
x=3
</span><span>x+3y=12
</span><span>
3+3y=12
3y=9 y=3
(x,y)=(3,3)</span>
Answer:
The answer to your question is:
Step-by-step explanation:
1.- y = 4x + 2
y = x - 3
x - 3 = 4x + 2
4x - x = -3 - 2
3x = -5
x = -5/3
y = -5/3 - 3
y = (-5 - 9) / 3
y = -14/3
2.- 7x + 2y = 18
6x (+) 6y = 0 There is no sign in the second
equation
1/5a + 1/3 = 1/3a - 1/3
1/5a + 2/3 = 1/3a
2/3 = 2/15a
1/5 = x