You can see that the term $-6y$ appears in both equations. In this cases, we can leverage this peculiarity and subtract the two equations to get rid of the repeated term. So, if we subtract the first equation from the second, we have

$(-4x -6y) - (-10x-6y) = 54-0 \iff 6x = 54 \iff x = 9$

Now that we know the value of $x$ , we can substitute in any of the equation to deduce the value of $y$ : if we use the first equation, for example, we have

$-10x-6y=0 \iff -10\cdot 9 - 6y = 0 \iff -90-6y=0 \iff 6y = -90 \iff y = -15$

7 0

3 years ago

PLEASE HELP ASAP!!! WILL MARK BRAINLIEST!!!!

xxMikexx [17]

Answer:

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Step-by-step explanation:

5 0

3 years ago

-5 1/2 - 4 1/4 + 6 3/4

ruslelena [56]

Answer:

-3

Hope this helps :)

Have a great day !

5INGH

Step-by-step explanation:

$-5\frac{1}{2} - 4\frac{1}{4} +6 \frac{3}{4} = -5\frac{2}{4} - 4\frac{1}{4} +6 \frac{3}{4} = -9\frac{3}{4} +6\frac{3}{4}=-3$

5 0

3 years ago