решите уравнение
9x+4=48-2x
x-9=4(x-6)
0.4x+3.8=2.6-6.8
3.5-8(x+2.8)=x
0.3(6-2y)=4.5-0.7(y-9)
-8-4x=2x+16
11x=36-x
6-3(x+1)=7-2x
(8x+3)-(10x+6)=8
9x+4=48-2x
x-9=4(x-6)
0.4x+3.8=2.6-6.8
3.5-8(x+2.8)=x
0.3(6-2y)=4.5-0.7(y-9)
-8-4x=2x+16
11x=36-x
6-3(x+1)=7-2x
(8x+3)-(10x+6)=8
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Answers & Comments
Пошаговое объяснение:
1. 9х + 2х =48 - 4
11х = 44
х = 4
2. х-9=4х-24
х-4= -24+9
-3х= -15
х=5
3. 0,4х+3,8= -4,2
0,4х= -4,2-3,8
0,4х= -8
х= -20
4. 3,5 - 8х-22,4=х
-18,9-8х=х
-8х-х=18,9
-9х=18,9
х= -2,1
5. 1,8-0,6у=4,5-0,7у+6,3
1,8-0,6у=10,8-0,7у
-0,6у+0,7у=10,8-1,8
0,1у=9
у=90
6. -4х-2х=16+8
-6х=24
х=-4
7. 11х+х=36
12х=36
х=3
8. 6-3х-3=7-2х
-3х+2х=7-3
-х=4
х= -4
9. 8х+3-10х-6=8
-2х-3=8
-2х=8+3
-2х=11
х= -11/2 = -5 1/2 = -5,5