4x+7y=26 4x-5y=2 elimination method

(3, 2)

x= 3

y= 2

Step-by-step explanation:

You have to cancel out one of the variables. In this case I am canceling out 4x. I'm doing that by multiplying all the numbers in that equation by -1 because 4x is positive and I'm doing the inverse property of it.

Now you have your new equation.

Next, you have to add the two equations together.

You divide -12 by -24 and you get 2.

Now you have to substitute 2 to find out what x is. You can pick any equation to substitute with.

Then you solve it to find x.

Your final answer for x should be 3. To conclude, y= 2 and x= 3.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: