SOLUTION: y=9-3x x=8-2y I need to solve x and y values please help!

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Question 94123: y=9-3x
x=8-2y
I need to solve x and y values please help!

Found 2 solutions by elizaldecalaunan, chitra:
Answer by elizaldecalaunan(5)   (Show Source): You can put this solution on YOUR website!
x=2
y=3

Answer by chitra(359)   (Show Source): You can put this solution on YOUR website!
The given equations are:

y = 9 - 3x and x = 8 - 2y

The given equations are simultaneous equations and hence can be solved in this manner.

3x = 9 - y ---------------(1)
x = 8 - 2y ---------------(2)

Multiply eqn (1) by 2 and subtract if from eqn (2)


thus we get:

6x = 18 - 2y

x = 8 - 2y
==============
5x = 10

==> x = 10/5

==> x = 2

By back substitution, we get: y = 9 - 3x

y = 9 - 6

y = 3

Hence, the solution.

Regards
==

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