9. 5х+3х-1,3=1,1 10. (х+0,3):7=0,2 11. 5,2х+6,4х-1,9х=14,55. Created by Alexa2905. matematika-ru

9. 5х+3х-1,3=1,1 10. (х+0,3):7=0,2 11. 5,2х+6,4х-1,9х=14,55...

August 2022 2 8 Report

9. 5х+3х-1,3=1,1

10. (х+0,3):7=0,2

11. 5,2х+6,4х-1,9х=14,55

korolevichna07 5х + 3х - 1,3 = 1,1
5х + 3х = 1,1 + 1,3
8х =2,4
х = 2,4 : 8
х = 0,3

(х + 0,3) : 7 = 0,2
х + 0,3 = 0,2 х 7
х + 0,3 = 1,4
х = 1,4 - 0,3
х = 1,1

5,2х + 6,4х - 1,9х = 14,55
9,7х = 14,55
х = 14,55 : 9,7
х = 1,5

1 votes Thanks 2

PutereDinu $9. \ 5x+3x-1,3=1,1$
$8x-1,3=1,1$
$8x=1,1+1,3$
$8x=2,4$
$x=2,4:8$
$\boxed{x=0,3}.$

$10. \ (x+0,3):7=0,2$
$x+0,3=0,2*7$
$x+0,3=1,4$
$x=1,4-0,3$
$\boxed{x=1,1}.$

$11. \ 5,2x+6,4x-1,9x=14,55$
$11,6x-1,9x=14,55$
$9,7x=14,55$
$x=14,55:9,7$
$\boxed{x=1,5}.$

1 votes Thanks 2

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