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OpenStudy (anonymous):
For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you substitute into the second equation? 2x + 6y = 18 3x − 2y = 6 −3y + 9 −3y − 9 3y − 9 3y + 9
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OpenStudy (welshfella):
2x + 6y = 18 divide through by 2 x + 3y = 9 can you continue/ x = ?
OpenStudy (welshfella):
* subtract 3y from both sides
OpenStudy (welshfella):
are you with me?
OpenStudy (anonymous):
yes
OpenStudy (welshfella):
good ok
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OpenStudy (welshfella):
so which one do you think its is
OpenStudy (welshfella):
x + 3y = 9 - 3y -3y
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