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OpenStudy (anonymous):
How do I know how to solve this question either by substitution or elimination 0.4m + 1.8n = 8 and 1.2m + 3.4n = 16? Help me please and explain
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OpenStudy (anonymous):
Please help
OpenStudy (anonymous):
I would use elimination just because substitution is so time-consuming and there would be too much fractions going on.
OpenStudy (anonymous):
Elimination is usually the easiest route to go but when you see one variable all by itself, then substitution would be easy.
OpenStudy (anonymous):
Aha k
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