-3a + 5 =-1 please help me
2 answers:
Answer:
2
Step-by-step explanation:
To find <em>a</em> we need to first isolate it. There is a 5 on the left side along with the -3a that has to be moved.
To do this, we can subtract 5 from both sides of the equation using the subtraction property of equality.
-3a + 5 - 5 = - 1 - 5
-3a = -6
Now that the a term is isolated, the next step is to remove the coefficient.
Let's use the division property of equality and divide both sides of the equation by -3.
-3a/-3 = -6/-3
a = 2
Answer:
2
Step-by-step explanation:
-3a + 5 = -1
5+1 =3a
6 =3a
divide both sides by 3
6/3 = 3a/3
2=a
Therefore a=2
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Answer: P=130
2W +2L=130
2(31) + 2(34)=130
W=31
L=34
Step-by-step explanation:
P=130
2L + 2W
W=L-3
Add all of the sides together to get perimeter.
2(L-3) + 2L=130
2L-6+2L=130
4L-6+6=130+6
4L=136
4L/4=136/4
L=34
W=L-3
W=34-3
W=31
Answer:
Yes.
Step-by-step explanation:
-3 * 3 = -9
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Answer:
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Step-by-step explanation:
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