SOLUTION: I need help! solve each system of equations by elimination 5x

SOLUTION: I need help! solve each system of equations by elimination 5x - 4y = 23 7x + 8y = 5 Thanks

Question 125638: I need help!
solve each system of equations by elimination
5x - 4y = 23
7x + 8y = 5
Thanks
Answer by iluvbuilding429(41) (Show Source): You can put this solution on YOUR website!
I need help!
solve each system of equations by elimination
5x - 4y = 23
7x + 8y = 5
Thanks

Multiply the first equation by 2, so that the y's cancel out.

Add the like terms:

Divide both sides by 17:

Plug this value into one of the original equations:

Multiply:

Subtract 15 from both sides:

Divide both sides by -4:

So, x=3 and y=-2

-buildings

RELATED QUESTIONS
I need help! solve each system of equations by elimination 5x - 4y = 23 7x + 8y... (answered by benni1013)

Solve each system of equation by elimination. Show your work. a. (6,a) b. (-4,b) c.... (answered by solver91311,Seutip)

7x + 4y = -4 5x + 8x = 28 how do you solve the system of equations by... (answered by persian52)

Use elimination to solve each system of equations. I have to show all work and write the... (answered by ikleyn)

Use elimination to solve each system of equations. I have to show all work and write the... (answered by ikleyn,ankor@dixie-net.com)

Need some help to make sure I am doing this right. Solve the system of equations by... (answered by mananth)

solve the following system bu substitution x=7y+9 x=7/4y what is the solution set? (answered by solver91311,JBarnum)

Solve the system of equations by the method of elimination. x-4y=-7... (answered by Jk22)

Solve the system of equations by elimination 7x + 6y=30 9x - 8y=... (answered by mananth)