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Nataly [62]
2 years ago
10

What is 3x+70=8x-20 show work

Mathematics
1 answer:
Elena-2011 [213]2 years ago
6 0

Answer:

Hi there!

Your answer is:

x= 18

Step-by-step explanation:

3x+70=8x-20

Isolate x on left side

3x+70=8x-20

-8x       -8x

-5x +70 = -20

Isolate whole numbers on right side

-5x +70 = -20

      -70      -70

-5x = -90

Isolate x by dividing both sides by -5

-5x = -90

/-5

x= 18

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Step-by-step explanation:

11 cents=  one peny is one cent

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3 qurters= 75 cents, one quaters is 25 cents

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Answer:

Step-by-step explanation:

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What is the value of x in the equation
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In both cases you may well benefit from graphing the functions.

Do you recognize f(x) = (x + 1)^2 - 1 as a quadratic function, whose graph is that of a parabola that opens up? By comparing this to y = a(x-h)^2 + k, we see that a=1, h= -1 and k = -1. The vertex is at (h,k), which here is the point (-1, -1). This is the minimum value of the function. Thus, the range of this function is [-1, infinity).


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