Answer:
see explanation
Step-by-step explanation:
Given the 2 equations
- 6x - 4y = 2 → (1)
- 4x - 7y = 2 → (2)
Multiplying (1) by 4 and (2) by - 6 will eliminate the x- term
- 24x - 16y = 8 → (3)
24x + 42y = - 12 → (4)
Add (3) and (4) term by term
26y = - 4 ( divide both sides by 26 )
y = = -
7
42 meters divided by 6 meters = 7 meters
the answer is x = 9.
Stephanie saved
x+4x=15600
5x=15600
divide by 5 on both sides
you get 3120
since stephanie got 4 times more, you multiply 3120*4 and get 12480
therefore, Alejandro saved 3120
: )
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