2 answers:
Answer:
4) x = 11
5) x = -6
6) x = 18
7) x = 21
Step-by-step explanation:
(the equations and the answers are bolded)
<h3>4)</h3>
x + 9 = 21
<em>subtract 9 from both sides of the equation</em>
x + 9 - 9 = 21 - 9
x = 21 - 9
x = 11
<h3>5)</h3>
21 - x = 27
<em>add x to both sides</em>
21 - x + x = 27 + x
21 = 27 + x
<em>subtract 27 from both sides</em>
21 - 27 = 27 - 27 + x
-6 = x
<h3>6)</h3>
21 = x + 3
<em>subtract 3 from both sides</em>
21 - 3 = x + 3 - 3
21 - 3 = x
21 - 3 = 18
18 = x
<h3>
7)</h3>
x - 9 = 12
<em>add 9 to both sides</em>
x - 9 + 9 = 12 + 9
x = 12 + 9
x = 21
Answer:
5. 27 + 21 = 48
6. 21 - 3 = 18
7. 12 + 9 = 21
Step-by-step explanation:
I could only see these three but I hope this helps :)
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Step-by-step explanation:
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Step-by-step explanation:
Answer:
Simple Interest=PTR/100
Step-by-step explanation:
Principle(P)=$210
Time(T)=7years
Rate(R)=8%
We have,
SI= (210*7*8)/100
=(11760)/100
=117.7
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