SOLUTION: Idk how to solv this 13x-2y=70 2x-2y=4 Its substituting

Question 316552: Idk how to solv this
13x-2y=70
2x-2y=4
Its substituting
Found 3 solutions by Fombitz, CharlesG2, josmiceli:
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
1.
2.
From eq. 2,

Substitute into eq. 1

Then use eq. 2 to find .

Answer by CharlesG2(834)   (Show Source): You can put this solution on YOUR website!
I do not know how to solve this
13x-2y=70
2x-2y=4
Its substituting
13x - 2y = 70
2x - 2y = 4 (using elimination so I am multiplying this by -1 and adding to the above line to cancel out the y)
11x + 0y = 66 --> x = 6
-2x + 2y = -4
-2(6) + 2y = -4
-12 + 2y = -4
2y = 8
y = 4
check:
13(6) - 2(4) = 78 - 8 = 70
2(6) - 2(4) = 12 - 8 = 4

Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
(1)
(2)
Divide both sides of (2) by
(2)
Add to both sides
(2)
Substitute this value for in (1)
(1)
(1)
Subtract from both sides
(1)
(1)
(1)
Now substitute this into (2)
(2)
Add to both sides
(2)
(2)
(2)
The solution is x = 6 and y = 4
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