SOLUTION: Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. x + 10y = 41 x + 9y = 37 so far I have: x

Question 499853: Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this.
x + 10y = 41
x + 9y = 37
so far I have:
x = 41-10y
(41-10y) + 9y =37
here is where I get confused.....
is it: 31x - 9y = 37
or do I add to get 51x + 9y = 37
Please help...
Found 2 solutions by jim_thompson5910, MathLover1:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
You have (41-10y) + 9y =37 which is the same as 41-10y + 9y =37

Solve it to get

41-10y+9y=37

-y+41=37

-y=37-41

-y=-4

y=(-4)/(-1)

y=4

So the value of y is y = 4

Use this to find x.
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

.......so far is good; now just eliminate parentheses

....add

...move to the right and to the left

...now find

PS:
you asked "is it: ?...answer: NO, you cannot subtract from (as you cannot subtract apples from bananas)... is whole number and is a product of whole number and unknown variable

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