tentukan hasil dari a. 5x - 6 = 2x + 3 b. -5x + 7 = 2x + 77 c. x/5x + 12/10x d. -8x + 5 e. (-4x + 25)

a. 5x-6=2x+3
5x-6+6=2x+3+9
5x =2x+12
5x-2x =2x-2x+12
3x. =12
3x/3. =12/3
x. =4

a.5x-6=2x+3
=>5x-2x=3-6
=>3x=3
=>x=-3/3=-1

b.-5x+7=2x+77
=>-5x-2x=77-7
=>-7x=70
=>x=70/-7
=>x=-10

c.x/5x+12/10x
=>x(10x)+12(5x)/(5x)(10x)
=>10x^2+60x/(5x)(10x)
=>x(10x)+60x/(5x)(10x)
=>x+60x/5x
=>61x/5x

d.-8x+5
=>-8x=-5
=>x=-5/-8

e.(-4x+25)
=>-4x+25=0
=>-4x=25
=>x=25/-4

semoga bermanfaat