please bantu jawab! 1.12x-45=-3(x-15) 2.3x+5(2x-10)=12x13 3.2(x+3)+4(x-5)=4(2x-3)

1.) 12x-45=-3(x-15)
= 12x -45= -3x+45
= 12x+3x= 45+45
= 15x=90
=x= 6

2.) 3x+5(2x-10) = 12×13
= 3x+10x -50= 156
=13x = 206
=x = 15,8
ehh no 2 nih ga slah ap soalnya?

3.)2(x+3)+4(x-5)=4(2x-3)
= 2x+6+4x-20=8x-12
= 6x-14= 8x -12
=-2x= 2
=x = -1

1. 12x -45 = -3(x-15)
→12x -45,= -3x + 45
→12x +3x = 45 +45
→ 15 x = 90
→ x= 90/15
→ x = 6

2. 3x+5(2x-10)= 12×13
→ 3x +10x -50 = 156
→ 13x = 156 +50
→ 13x = 206
→ x = 15 11/13

3. 2(x+3) +4(x-5)= 4(2x-3)
→ 2x +6 +4x - 20 = 8x -12
,→ 2x+4x +6-20 ,= 8x -12
→6x -14 = 8x-12
→6x -8x = -12 +14
→ -2x = 2
→ x= -1
maaf jika salah