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3 years ago

4x + 1 = 7x - 5 Solver for x

Mathematics

2 answers:

andreyandreev [35.5K]3 years ago

7 0

Answer:

x=2

Step-by-step explanation:

4x + 1 = 7x - 5

subtract 4x from each side

4x-4x + 1 = 7x-4x - 5

1 = 3x-5

Add 5 to each side

1+5 = 3x-5+5

6 =3x

Divide by 3

6/3 =3x/3

2 =x

Luba_88 [7]3 years ago

3 0

Answer:

The answer would be x=2.

Step-by-step explanation:

Step 1: (Multiply)

4 x 2 = 8.

Step 2: (Add)

8 + 1 = 9.

Step 3: (Multiply 2nd problem)

7 x 2 = 14.

Step 4: (Subtract)

14 - 5 = 9.

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The product of three integers x, x+2, and x-5 is 240. What are the integers?

Dafna11 [192]

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Step-by-step explanation:

For finding real solutions to cubic equations and those of higher degree, I find a graphing calculator to be useful. The problem can be cast in the form ...

f(x) = 0

where f(x) is the difference between the product of the integers and 240:

f(x) = x(x +2)(x -5) -240

Then all we need to do is ask the calculator to show the x-intercept. It is x=8.

So, the three integers are ...