Question

5x/10+x = (4x-90)+5
Solve for x

P.S. in the question, it is 10+x not 10x

Answer 1

Answer:

5x/(10+x)=(4x-90)+5

=5x=(10+x){4x-85}

=5x=10(4x-85)+x(4x-85)

=5x=40x-850+4x^2-85x

=4x^2-50x-850=0

=2x^2-25x-425=0

using siddharacharya's formula

x={-b+-root(b^2-4ac)}/2a

x={25+-root(25^2+4*2*425)}/2*2

x={25+-root(625+3400)}/4

x={25+-root(4025)}/4

x={25+-63.4}/4

x={25+63.4}/4 or x={25-63.4}/4

x=22.1 or x=-9.6

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Answer 2

Answer:

same as above

Step-by-step explanation:

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