C, not sure but C. It makes sense to me & I got it right when I did it
<span>It means that it is pertaining to a type of math or in this case Geometry, for the use of its method.
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Answer:
[7, -8)
Step-by-step explanation:
qwerttiwisnxnsnandj ahjsxkkanas gwhdjxx
3x + 4y = 38 ( equation 1) ----> ×5
5x - 5y = -30 ( equation 2) ----> ×3
When you multiply eqn 1 by 5 you get, 15x + 20y = 190
And when you multiply eqn 2 by 3, you get, 15x - 15y = -90
Then you solve both equations by subtracting eqn 2 from eqn 1
15x + 20y = 190
15x - 15y = 90
Then 15x - 15x gets cancelled and 20y - (-15y) gives 35y and 190 - (-90) gives 280.
So that gives 35y = 280
y = 8
And when you replace y = 8 in any of the two equations, x = 2
Answer:
x equals y minus one
Step-by-step explanation:
= means equals
- is minus
x and y cannot be put into any other (word) form
hope this helps:)
