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Marta_Voda [28]
3 years ago
8

2(x+4)= -5x+1 Some one please solve

Mathematics
1 answer:
NeX [460]3 years ago
7 0

Let's solve your equation step-by-step.

2(x+4)=−5x+1

Step 1: Simplify both sides of the equation.

2(x+4)=−5x+1

(2)(x)+(2)(4)=−5x+1(Distribute)

2x+8=−5x+1

Step 2: Add 5x to both sides.

2x+8+5x=−5x+1+5x

7x+8=1

Step 3: Subtract 8 from both sides.

7x+8−8=1−8

7x=−7

Step 4: Divide both sides by 7.

7x

7

=

−7

7

x=−1

Answer:

x=−1

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Find S5 for a geometric series for which a1=81 and r=1/9.
Minchanka [31]

ANSWER

S_5=91\frac{10}{81}




EXPLANATION


The sum of the first n terms of a geometric sequence is given by;


S_n=\frac{a_1(1-r^n)}{1-r} ,-1


Where n, is the number of terms and a_1 is the first term.


When n=5, we have a_1=81, we get;


S_5=\frac{81(1-(\frac{1}{9})^5)}{1-\frac{1}{9}}


S_5=\frac{81(1-\frac{1}{59049})}{1-\frac{1}{9}}


S_5=\frac{81(\frac{59048}{59049})}{\frac{8}{9}}




S_5=\frac{7381}{81}


S_5=91\frac{10}{81}




6 0
3 years ago
12 POINTS!!!
dimaraw [331]

Answer:

Step-by-step explanation:

7 0
2 years ago
How do u solve -2 + (-3)
shtirl [24]
-5 because a negative plus a negative is a positive this is why it is the right answer
3 0
3 years ago
What number can I put in the denominator?<br> 1<br> 8<br> 7
Zigmanuir [339]

Answer:

The LCD denominator is 1

Step-by-step explanation:

4 0
2 years ago
Solve pls branliest!
Shkiper50 [21]

Answer:

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Step-by-step explanation:

I double checked them

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Read 2 more answers
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