Question

Ответы и решение 9(х+7)=-х 5(х-3)=4х 4(х+6)=х -х=4(6+х)

Answer 1

9x+63 = -x
10x = -63
x = -6,3

5x-15 =4x
x=15

4x+24 = x
3x =-24
x= - 8

-x=24+4x
3x = 24
x=8

Answer 2

9(х+7)=-х
9х+63=-х
9х+х=-63
10х=-63
х=-63:10
х=-6.3

5(х-3)=4х
5х-15=4х
5х-4х=15
х=15

4(х+6)=х
4х+24=х
4х-х=-24
3х=-24
х=-24:3
х=-8

-х=4(6+х)
-х=24+4х
-х-4х=24
-5х=24
х=24:(-5)
х=-4.8