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-BARSIC- [3]
4 years ago
5

9x -7 = -7 show your work

Mathematics
2 answers:
Irina-Kira [14]4 years ago
5 0
9x-7=-7
     +7 +7
___________
9x= 0
_     _
9     9
x=0
steposvetlana [31]4 years ago
3 0
9x-7=-7 9x = -7+7 9x/9 = 0/9 x = 0
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When solving negative one over eight (x + 35) = −7, what is the correct sequence of operations?
Maksim231197 [3]
<span>The answer is:  [C]:  
__________________________________________________________
Multiply each side by −8, subtract 35 from each side.

___________________________________________________________
Explanation:
___________________________
Given: You have (-1/8)*(x + 35) = -7
________________________________________
Note that all the answer choices given start with: "Multiply each side by...."; 
</span>____________________
Given the choices, multiplying EACH SIDE of the equation by "(-8)" would make sense, since doing would cancel the "(-1/8)" on the "right-hand side" of the equation above to a "1" (i.e "cancel out" that ("-1/8") value); and would result in making the "right side" of the equation above ("-7") a positive integer number. 
 Then you would be left with:  x + 35 = 56 ; so the next step would be to:
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Subtract: "(35)" from each side of the question [hence the answer choice] to isolate "x" on one side of the equation; and to solve for "x".
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6 0
3 years ago
Which expression is equivalent to (5x^3)(4x)^3
sergij07 [2.7K]

Answer:

320x^{6}

Step-by-step explanation:

Using the rules of exponents

• (ab)^{n} ⇔ a^{n} b^{n}

• a^{m} × a^{n} ⇔ a^{(m+n)}

simplifying (4x)^{3} = 4³ × x³ = 64x³

(5x³) ×(4x)^{3}

= 5x³ × 64x³ = (5 × 64) × (x³ × x³) = 320x^{(3+3)} = 320x^{6}


5 0
3 years ago
Read 2 more answers
Does anyone know how to figure this out? can you please explain it to me?
Stolb23 [73]

Answer:

x=108'

y=25'

Step-by-step explanation:

180 = 72+x

so,

x = 180-72

  = 108'

x = 5y-17 ( but we know x is 108')

so 108 = 5y -17

108+17 = 5y

5y = 125

y = 25

7 0
3 years ago
Read 2 more answers
Please help me this is due today!
ra1l [238]

Answer:

the answer is "d" i believe

Step-by-step explanation:

the opposite of a positive is a negative and it says "write your answer as a mixed number"

5 0
3 years ago
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Convert into the standard equation of a line. <br><br> y + 2 = 1/2(x - 6)<br><br> Please help!!
NNADVOKAT [17]
The correct answer to the question is X+2y=-10
5 0
3 years ago
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