3. Solve the following linear equations by trial and error method.
a) 47 = -10a +3a + 12
please tell me the answer... l beg of you all
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Answer:
+5 -5
Step-by-step explanation:
-10a+3a+12=47
= -7a=47-12
= -7a=35
= -a=35/7
= a= +5 or -5
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