Can someone help? 15 points! :)
1 answer:
Answer:
Step-by-step explanation:
Given.
(4x)/7 - 6 = -20
The x variable should be isolated on one side of the equation.
<u>Adding 6 to both sides of the equation.</u>
(4x)/7 - 6 + 6 = - 20 + 6
(4x)/7 = - 14
<u>Multiplying both sides of the equation by 7.</u>
(4x)/7 × (7) = - 14 × (7)
4x = - 98
<u>Dividing both sides of the equation by 4.</u>
(4x)/4 = - 98/4
x = - 24.5
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Answer:
<u><em>F(x)= 5*[ + (a*b)*
+ a*b*x + C.</em></u>
Step-by-step explanation:
<u><em>First step we aplicate distributive property to the function.</em></u>
<u><em>5*(x+a)*(x+b)= 5*[+x*b+a*x+a*b]</em></u>
<u><em>5*[+x*(b+a)+a*b]= f(x), where a, b are constant and a≠b</em></u>
<u><em>integrating we find ⇒∫f(x)*dx= F(x) + C, where C= integration´s constant</em></u>
<u><em>∫^5*[+x*(a+b)+a*b]*dx, apply integral´s property</em></u>
<u><em>5*[∫dx+∫(a*b)*x*dx + ∫a*b*dx], resolving the integrals </em></u>
<u><em>5*[ + (a*b)*
+ a*b*x</em></u>
<u><em>Finally we can write the function F(x)</em></u>
<u><em>F(x)= 5*[ + (a*b)*
+ a*b*x ]+ C.</em></u>