Вопрос
ii) 9-4y=-5y K) 12a-1=-a+25 JI) 8+3b=-7-2b M) 4n+2=6n+7 H) 2-c=5c+1 0) -3d-10=3d-6 m (5)/(6)m+2=(1)/(3)m-0,8 P) -1,6-0,3p=0,9p+0,2 C) (11)/(12)x-(2)/(3)=-0,5-(3)/(4)x T) 2a-(14-3a)=-10 y) (9-2b)-(b+5)=16 (D) -(4c-7)=5c+(11-7c) X) -6x+2(5-3x)=8 II) 4(-2z+5)=14-2(4z-3) 4) 18-4y=7(2-y)+6
Решения
4.2
(297 Голоса)
Трифон
Экспертная проверка
профессионал · Репетитор 6 лет
Ответ
Let's solve each equation step by step:ii)
Add
to both sides:
Multiply both sides by
:
K)
Add
to both sides:
Add 1 to both sides:
Divide both sides by 13:
JI)
Add
to both sides:
Subtract 8 from both sides:
Divide both sides by 5:
M)
Subtract
from both sides:
Subtract 7 from both sides:
Divide both sides by 2:
H)
Add
to both sides:
Subtract 1 from both sides:
Divide both sides by 6:
0)
Add
to both sides:
Add 6 to both sides:
Divide both sides by 6:
II)
Subtract
from both sides:
Subtract 2 from both sides:
Multiply both sides by 2:
P)
Add
to both sides:
Subtract 0.2 from both sides:
Divide both sides by 1.2:
C)
Add
to both sides:
Combine like terms:
Multiply both sides by 4/5:
T)
Distribute the negative sign:
Combine like terms:
Add 14 to both sides:
Divide both sides by 5:
y)
Distribute the negative sign:
Combine like terms:
Subtract 4 from both sides:
Divide both sides by -3:
(D)
Distribute the negative sign:
Combine like terms:
Add
to both sides:
Subtract 11 from both sides:
Divide both sides by 2:
X)
Distribute the 2:
Combine like terms:
Subtract 10 from both sides:
Divide both sides by -12:
II) $4