SOLUTION: Solve. {2x + 3y = 4 {3x + 4y = 5 The two curly brackets were supposed to be one big curly bracket; I wasn't sure if it mattered. Anyways, I really need help with this. Thank

Algebra ->  Expressions-with-variables -> SOLUTION: Solve. {2x + 3y = 4 {3x + 4y = 5 The two curly brackets were supposed to be one big curly bracket; I wasn't sure if it mattered. Anyways, I really need help with this. Thank      Log On


   

Question 314316: Solve.
{2x + 3y = 4
{3x + 4y = 5
The two curly brackets were supposed to be one big curly bracket; I wasn't sure if it mattered. Anyways, I really need help with this. Thank you!
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.2x+%2B+3y+=+4
2.3x+%2B+4y+=+5
Multiply eq. 1 by (3) and eq. 2 by (-2) and add them together.
6x%2B9y-6x-8y=12-10
highlight%28y=2%29
Then use either equation to solve for x.
2x%2B3y=4
2x%2B3%282%29=4
2x=-2
highlight%28x=-1%29
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