Toloong pleeaseeee akuu butuuh bangeet

4. a). 6x + 5 = 26 - x
=====> 6x + x = 26 - 5
=====> 7x = 21
=====> x = 21/7
=====> x = 3
b). 2- 4x = 3
====> -4x = 3 - 2
====> -4x = 1
====> x = - 1/4
c). x - 12 = 2x + 36
==> x - 2x = 36 + 12
==> -x = 48
==> x = - 48
d). -5x - 4x + 10 = 1
==> -9x = 1 - 10
==> -9x = -9
==> x = -9/-9
==> x = 1
e). 2 + x/4 = 5
--------------------- x4
==> 8 + x = 20
==> x = 20 - 8
==> x = 12

5). 3x + 12 = 7x - 8
==> 3x - 7x = -8 - 12
==> -4x = -20
==> x = -20/-4
==> x = 5
nilai dari
x + 2 =
5 + 2 = 7

6). 3x - 4 = 2x + 1
==> 3x - 2x = 4 + 1
==> x = 5

semoga membantu dan jadikan jawaban saya yang terbaik ^_^