2(7+9x)=-6x+2 6(5-3x)=-8x-7 помогите решить

Question

2(7+9x)=-6x+2
6(5-3x)=-8x-7
помогите решить

Answer 1

2(7+9х)=-6х+2
14+18х=-6х+2
18х+6х=-14+2
24х=-12
х=-12 :24
х= -0.5
==================================
6(5-3х)=-8х-7
30-18х=-8х-7
-18х+8х=-7-30
-10х = -37
х=-37 : (-10)
х= 3.7

Answer 2

2(7+9х)=-6х+2
14+18х=-6х+2
18х+6х=-14+2
24х=-12
х=-12 :24
х= -0.5
==================================
6(5-3х)=-8х-7
30-18х=-8х-7
-18х+8х=-7-30
-10х = -37
х=-37 : (-10)
х= 3.7

Comments

спасиибо

Answer 3

14+18х= -6х+2
18х+6х=2-14
24х= -12
х= -12:24
х= -0,5

30-18х= -8х-7
 -18х+8х= -7-30
-10х= -37
х= -37:(-10)
х=3,7

Comments

Спасиибо

---

Пожалуйста