3 years ago

0.4x-0.8(x-4) =1.3x - 1.9how do I solve it?

Mathematics

1 answer:

Oxana [17]3 years ago

7 0

Answer:

x = 3

Step-by-step explanation:

First, multiply all four terms by 10 to eliminate the fractions:

4x - 8(x-4) = 13x - 19

Next, carry out the indicated multiplication, obtaining:

4x - 8x + 32 = 13x - 19

Combining the x terms, we get:

-4x + 32 = 13x - 19, or

32 = 17x - 19

Combining the constants, we get 51 = 17x, and so x = 51/17 = 3.

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2 years ago

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Step-by-step explanation:

$\sf \frac{3}{a} x - 4 = 20\\\\Add \ 4 \ to \ both \ sides\\\\\frac{3}{a} x = 20+4\\\\\frac{3}{a} x = 24\\\\Multiply \ both \ sides \ by \ a\\\\3x = 24 * a\\\\Divide \ 3 \ to \ both \ sides\\\\x = 24a / 3\\\\x = 8a\\\\\rule[225]{225}{2}$

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3 years ago

0.4x-0.8(x-4) =1.3x - 1.9how do I solve it?​

0.4x-0.8(x-4) =1.3x - 1.9how do I solve it?