Explain, in complete sentences, which method you would use to solve the following system of equations and why you chose that method. Show your work and provide the solution to the system.

5x + 3y = –7
4x – 2y = –10

Question

Explain, in complete sentences, which method you would use to solve the following system of equations and why you chose that method. Show your work and provide the solution to the system.

5x + 3y = –7
4x – 2y = –10

anonymous · Answer

Well you would do a simultaneous equaion.  Using eq. 1, we know that (-7 - 5x)/ 3 = y.  Then we plug that into eq 2 to get 4x - 2((-7-5x)/3) = -10.  THen we solve for x and then plug that value into any of the twi equations to get the value of y.

anonymous · Answer

Thank you

ash2326 · Answer

this is method of substitution

ash2326 · Answer

we used this because  it's easy to find the value of y in terms of x from second equation