8.9 – 1.4x + (–6.5x) + 3.4
2 answers:
Answer:
12.3 – 7.9x
Step-by-step explanation:
the product of + and - is -
Therefore,
8.9 – 1.4x + (–6.5x) + 3.4
= 8.9 – 1.4x –6.5x + 3.4
collect like terms
= – 1.4x – 6.5x + 3.4 + 8.9
= –7.9x + 12.3
= 12.3 – 7.9x
8.9 + 3.4 -1.4x - 6.5x = 12.3 - 7.9x
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