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s344n2d4d5 [400]
3 years ago
8

How do you solve 5x+7=3x-5

Mathematics
2 answers:
olya-2409 [2.1K]3 years ago
5 0
Subtract 3x from both sides then isolate the variable.
Sooooo...
5x+7=3x-5
2x+7=-5
2x=-12
x=-6
xenn [34]3 years ago
4 0
5x + 7 = 3x - 5

First, subtract 3x from both sides.
5x = 7 - 3x = -5
Second, keep the 7 and subtract the 5x - 3x to get 2x.
2x + 7 = -5
Third, subtract the 7 from both sides.
2x = -5 - 7
Fourth, simplify -5 - 7.
2x = -12
Fifth, take the 2 and divide it on both sides, leaving just x in its place.
x =  -\frac{12}{2}
Sixth, since 6 goes into 2 to get 12, simplify the fraction to 6.
x = -6

Answer: x = -6

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Answer:

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4 0
3 years ago
Kalon has $175 and needs to save at least $700 for a new computer. If he can save $35 per week, what is the minimum number of we
Katarina [22]

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6 0
3 years ago
Read 2 more answers
At Costco, you can buy a ten-pound bag of Halloween candy for $23.99. Kroger is running a special on the same brand of candy: bu
kirill [66]

Answer:

A. 2.40

B. 4

C. Costco is the better deal

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6 0
3 years ago
Find the ordered pairs for the x- and y-intercepts of the equation 3x - 2y =18
Len [333]
X-int:let y=0
3x-2(0)=18
3x=18
divide both sides by 3
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y-int:let x=0
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5 0
3 years ago
Precalc help needed, find g ° f!
Nezavi [6.7K]

Answer:

g o f = -[f(x)]² + 3 = -(|x|)² + 3 = -x² + 3 = g(x)

Step-by-step explanation:

g o f = g [ f(x) ]

This means replace the x of g(x) with f(x):

g o f = -[f(x)]² + 3 = -(|x|)² + 3

As x² ≥ 0 for any value of x (whether it be positive or negative), then -(|x|)² + 3 = -x² + 3 = g(x)

So g o f = g(x)

8 0
2 years ago
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