Justadumbemo
05.08.2019 •
Mathematics
What makes the value n of the equation true -2n+1.8=3.2 a.-3.4 b.-0.7 c. 0.7 d.-2.5
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Ответ:
Subtract 1.8 from both sides
-2n = 1.4
Divide both sides by -2
n = 1.4/-2 = 0.7/-1 = -0.7
n = -0.7
Check your work:
-2(-0.7) + 1.8 = 3.2
1.4 + 1.8 = 3.2
3.2 = 3.2
The answer is B. -0.7
Ответ: