SOLUTION: How do i solve 2x +7y =8 and x- 9y =4 ?
Algebra.Com
Question 669722: How do i solve 2x +7y =8 and x- 9y =4 ?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Hint:
x- 9y =4
x = 9y+4
-----------------------
2x +7y =8
2x +7y =8
2(x) + 7y = 8
2(9y+4)+7y = 8
2(9y+4) + 7y = 8
RELATED QUESTIONS
how do I graph -4... (answered by fractalier)
How do I solve: x=-2/7y+3/4? How do i find the y-intercept and x-intercept and graph y=... (answered by jojo14344)
I am taking and online algebra II class and I do not understand how to solve this... (answered by jim_thompson5910,nyc_function)
What are the steps to figure out the problem (4,0);2x+7y=8,... (answered by Alan3354,josgarithmetic)
Please help me solve this
Which equation does not represent y as a function of x?
(answered by jim_thompson5910)
I am having trouble with this equation,
8x-9y=8.5
7y-2x=-45
solve using the... (answered by stanbon)
solve for x and y using substitution or addition method
8x+7y=-4... (answered by MathLover1)
How do I simplify... (answered by Fombitz)
x + 14y= 84
2x - 7y = -7
how do i solve these equations using substation?
(answered by checkley77)