1- х=5/8
2-t=5/14
Объяснение:
4(х-1)-3=-(х+7)+8
4х-4-3= -х-7+8
4х-7= -х+1
4х+х=1+7
5х=8
х= 5/8
2) 12+4(t-3)-2t=(5-3t)+9
12+4t-12-2t=5-3t+9
2t= -3t+14
2t+3t=14
5t=14
t=5/14
2х+5=2(-х+1)+11
2х+5= -2х-2+11
2х+2х=11-2-5
4х=4
х=4:4
х=1
-2(5t-9)+2=15+7(-t+2)
-10t+18+2=15-7t+14
-10t+20=29-7t
-10t+7t=29-20
-3t=9
t= - 9/3
t= - 3
(x-1)-3 = -(x+7)+8
x-1-3=-x-7+8
x-4=-x+1
x+x=1+4
2x=5
x=5/2
x=2 1/2 или 2.5
12+4(t-3)-2t=(5-3t)+9
2t=14-3t
t=14/5
t=2 4/5или 2,8
1- х=5/8
2-t=5/14
Объяснение:
4(х-1)-3=-(х+7)+8
4х-4-3= -х-7+8
4х-7= -х+1
4х+х=1+7
5х=8
х= 5/8
2) 12+4(t-3)-2t=(5-3t)+9
12+4t-12-2t=5-3t+9
2t= -3t+14
2t+3t=14
5t=14
t=5/14
Объяснение:
2х+5=2(-х+1)+11
2х+5= -2х-2+11
2х+2х=11-2-5
4х=4
х=4:4
х=1
-2(5t-9)+2=15+7(-t+2)
-10t+18+2=15-7t+14
-10t+20=29-7t
-10t+7t=29-20
-3t=9
t= - 9/3
t= - 3
(x-1)-3 = -(x+7)+8
x-1-3=-x-7+8
x-4=-x+1
x+x=1+4
2x=5
x=5/2
x=2 1/2 или 2.5
12+4(t-3)-2t=(5-3t)+9
12+4t-12-2t=5-3t+9
2t=14-3t
2t+3t=14
5t=14
t=14/5
t=2 4/5или 2,8