4(2x+3)-5x=-3
2(x+1)+5X=16
-4x-3(2x-1)=7
5x-2(x+3)=9
a)4(2x+3)-5x=-3 8x + 12 - 5x = -38x - 5x = -3 - 123x = -15 /:3x = -5b)2(x+1)+5x=162x + 2 + 5x = 162x + 5x = 16 - 27x = 14 /:7x = 2c)-4x-3(2x-1)=7-4x - 6x + 3 = 7-4x - 6x = 7 - 3-10x = 4 /:(-10)x = -0,4d)5x-2(x+3)=95x - 2x - 6 = 95x - 2x = 9 + 63x = 15 /:3x = 5
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a)
4(2x+3)-5x=-3
8x + 12 - 5x = -3
8x - 5x = -3 - 12
3x = -15 /:3
x = -5
b)
2(x+1)+5x=16
2x + 2 + 5x = 16
2x + 5x = 16 - 2
7x = 14 /:7
x = 2
c)
-4x-3(2x-1)=7
-4x - 6x + 3 = 7
-4x - 6x = 7 - 3
-10x = 4 /:(-10)
x = -0,4
d)
5x-2(x+3)=9
5x - 2x - 6 = 9
5x - 2x = 9 + 6
3x = 15 /:3
x = 5