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Diano4ka-milaya [45]
3 years ago
14

Plz help ill give you brainlist

Mathematics
2 answers:
kow [346]3 years ago
7 0
To solve this, we want to get the x values alone on one side. We do this by adding both sides by 37, to cancel out the -37:

9x - 37 = -118      (add both sides by 37 to get only x on one side)  
9x = -81               (divide both sides by 9 to get what just x is)
x = -9             
kirill [66]3 years ago
5 0
9x - 37 = - 118

add 37 to both sides
9x - 37 + 37 = -118 + 37
simplify
9x = -81
divide both sides by 9
9x/9 = -81/9
simplify
x = - 9

answer
x = -9
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f(t)=\begin{cases}0&\text{for }t

Recall that

u(t)=\begin{cases}0&\text{for }t

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For the next piece, we can add another scaled and shifted step like

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and so putting everything together, we get f(t):

f(t)\equiv-5u(t)+5u(t-1)-6u(t-1)+6u(t-7)+6u(t-7)
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