Solve this equation. 2/3x−1/5x=x−1

Mathematics

2 answers:

sergejj [24]3 years ago

7 0

Answer:

1,875

Step-by-step explanation:

$\frac{2}{3}x-\frac{1}{5}x=x-1\\\\=> \frac{2.5}{15}x-\frac{3}{15}x=x-1 \\\\=> \frac{2.5-3}{15}x=x-1\\\\=> \frac{10-3}{15}x=x-1\\\\\frac{7}{15}x=x-1\\\\=> 7 x=15(x-1)\\\\ 7x=15x-15\\\\ 8x=15\\\\ x =\frac{15}{8}=1,875$

KonstantinChe [14]3 years ago

6 0

Answer:

= 1 7/8

Step-by-step explanation:

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Find the TWO integers whos product is -12 and whose sum is 1<br>

ahrayia [7]

Answer:

$\rm Numbers = 4 \ and \ -3.$

Step-by-step explanation:

Given :-

The sum of two numbers is 1 .

The product of the nos . is 12 .

And we need to find out the numbers. So let us take ,

First number be x

Second number be 1-x .

According to first condition :-

$\rm\implies 1st \ number * 2nd \ number= -12\\\\\rm\implies x(1-x)=-12\\\\\rm\implies x - x^2=-12\\\\\rm\implies x^2-x-12=0\\\\\rm\implies x^2-4x+3x-12=0\\\\\rm\implies x(x-4)+3(x-4)=0\\\\\rm\implies (x-4)(x+3)=0\\\\\rm\implies\boxed{\red{\rm x = 4 , -3 }}$