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OpenStudy (anonymous):
Solve by the elimination method. 7x+8y= -15 9x-8y= -129
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OpenStudy (saifoo.khan):
x = -9 y = 6
OpenStudy (tad1):
add tje two equations 16x = -145 then divide both sides by 16 to find x. back substitute tofind y
OpenStudy (anonymous):
would the proper way to fill the answer in be (-9,6) ?
OpenStudy (saifoo.khan):
(-9,6)
OpenStudy (anonymous):
thank you!
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OpenStudy (anonymous):
good method
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