Answer:
X = -4 and Y = 1 (sorry if wrong im only in 6th grade ;(
Step-by-step explanation:
X - 7Y = -11 ......(i)
5X + 2Y = -18 ........(ii)
multiply equation (i) by 5 we get 5X - 35Y = -55 ....(iii)
subtract equation (ii) from (iii)
we get -37Y = -37 ⇒ Y = 1
now put the value of Y from above in equation (i)
we get X = -4
Answer:
x=12
Step-by-step explanation:
It is a textbook 3:4:5 triangle. The hypotenuse is 15 (5*3), and the base is 9 (3*3). Since they both share a common factor of 3, the 3rd side would be 4*3, which is 12.
Answer:
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Step-by-step explanation:
Using Pythagoras Theorem:
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Answer:
x=3
Step-by-step explanation:
First, combine like terms on the left side
4x-5x+9=5x-9
-x+9=5x-9
Subtract 9 on both sides
-x=5x-18
Subtract 5x on both sides
-6x= -18
Divide by -6 on both sides
x=3
Hope this helps! :)
