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Masteriza [31]
2 years ago
6

I really need hep with this question (5x-7)-5(7x-12)+7=0

Mathematics
2 answers:
tatyana61 [14]2 years ago
8 0

Answer:

x = 2

Step-by-step explanation:

<h2>Simplifying expressions:</h2>

                5x - 7 - 5(7x - 12) + 7 = 0

Distribute (-5) to each term of (7x - 12)

   5x - 7 + 7x*(-5) + (-12)*(-5) + 7 = 0

                5x - 7 - 35x + 60 + 7 = 0

                 5x - 35x - 7 + 60 +7 = 0

Combine like terms.

                                 -30x + 60 = 0

Subtract 60 from both sides

                                        -30x   = -60

Divide both sides by (-30)

                                             x   = (-60)/(-30)

                                               x = 2

Vinvika [58]2 years ago
8 0

Answer:

2

Step-by-step explanation:

Simplifying the Algebraic Equation.

( 5x - 7 ) -5 (7x - 12 ) + 7 = 0

Removing brackets.

5x - 7 - 35x + 60 + 7 = 0

Combining like terms.

5x - 35x + 60 + 7 - 7 = 0

- 30x + 60 = 0

- 30x = - 60

dividing bothsides by - 30

\frac{ - 30x}{ - 30}  =  \frac{ - 60}{ - 30}  \\  \\ x \:  = 2

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Maximum value of P+4x+5y+21 given the following: y-x&lt;1, 21x+7y&lt;25, x&gt;-2, y&gt;-4
allsm [11]

The maximum value of the objective function is 31.787

<h3>How to maximize the function?</h3>

The given parameters are:

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x>-2,  y>-4

Rewrite the inequalities as equation

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2 years ago
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4 years ago
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