5(х-2)-12х=32 2)2х+3(5-х)=15,5 3)15-4(7+2х)=1

Question

5(х-2)-12х=32
2)2х+3(5-х)=15,5
3)15-4(7+2х)=1

Answer 1

5(х-2)-12х=32
5x - 10 - 12x = 32
5x - 12x = 32 + 10
-7x = 42 | : (-7)
x = -6

2) 2x + 3(5-x) = 15,5
2x + 15 - 3x = 15,5 
2x - 3x = 15,5 - 15
-x = 0,5 | : (-1)
x = -0,5
 
3) 15 - 4(7+2x) = 1
15 - 28 - 8x = 1
-8x = 1 - 15 + 28
-8x = 14 | : (-8)
x = 7/4