SOLUTION: I would like you to help me with this problem: 5x-9y=11, 3x+7y=19.

Question 63358This question is from textbook Holt Pre-Algebra
: I would like you to help me with this problem: 5x-9y=11, 3x+7y=19. This question is from textbook Holt Pre-Algebra

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
5x - 9y = 11
3x + 7y = 19
:
Using the elimination method to eliminate x:
Mult the 1st equation by 3
Mult the 2nd equation by 5:
:
15x - 27y = 33
15x + 35y = 95
---------------- Subtract
0x - 62y = -62
Divide both sides by -62
y = -62/-62
y = +1
:
Find x; substitute 1 for y in the 1st equation:
5x - 9(1) = 11
5x - 9 = 11
5x = 11 + 9
5x = 20
x = 20/5
x = +4:
:
Check solutions in 2nd equation: 3(4) + 7(1) = 19

RELATED QUESTIONS
How do you solve this system of equations using substitution (not elimination): 5x - 9y = (answered by ReadingBoosters)

Can I get your help? My problem is this: {{{3x=1+sqrt(4x^2+x+7)}}} I started by... (answered by Alan3354,stanbon)

I am unsure on how to solve a problem such as: {{{ 3x^2+7y^2-12x-28y= -19 }}} if... (answered by stanbon)

What is the correct inequality in set notation or interval notation, and what would the... (answered by lynnlo)

hello i would like help with this problem please simplify this expression... (answered by Earlsdon)

hello i would like help with this problem please simplify this expression... (answered by jim_thompson5910)

hello i would like help with this problem please simplify this expression... (answered by checkley77)

Hi can you help me solve this problem that has been difficult for me. I am to solve... (answered by stanbon)

Hi, I am having trouble with a problem I hope some one can help me please. Factor... (answered by jim_thompson5910)