Answer:
Step-by-step explanation:
Given system:
- 8x - 4y = -4
- -3x + 4y = 5
Subtracting the second equation from the first:
- 8x - 4y - (-3x + 4y) = -4 - 5
- 8x + 3x - 4y - 4y = -9
- 11x - 8y = -9
It ends here
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Would be better to add the equations to eliminate y and solve the system:
- 8x - 4y + (-3x + 4y) = -4 + 5
- 5x = 1
- x = 0.2
Find y:
- 8*0.2 - 4y = -4
- 4y = 1.6 + 4
- 4y = 5.6
- y = 1.4
Solution (0.2, 1.4)
