Question

Jeśli ktoś jest mocny z matmy to proszę o rozwiązanie ; )
a + b + c + 2,5a + 2b - 0,5a
a + 3b + 14a- b
5z-4z
6x - x
i następne
3x - 2 - 2x + 5 + 4x gdy x = 12
3a - b + 5a+ 2b - 6 gdy a = 2 i b=2
x + 2y - 3 y - 3z + 5z - x gdy x = 5 y = 8 z = 6
3 ( x - 4z + y + 4x - z +2y) gdy x = 1 y = 2 z=12

Answer 1

A + b + c + 2,5a + 2b - 0,5a=3a+3b+c
a + 3b + 14a- b=15a+2b
5z-4z=z
6x - x=5x

Answer 2

A + b + c + 2,5a + 2b - 0,5a= 3a + 3b + c
a + 3b + 14a- b = 15a + 2b
5z-4z = z
6x - x = 5x
3x - 2 - 2x + 5 + 4x gdy x = 12
3x - 2 - 2x + 5 + 4x = 5x + 3 = 5 X 12 + 3 = 63
3a - b + 5a+ 2b - 6 gdy a = 2 i b=2
3a - b + 5a+ 2b - 6 = 8a + b = 16 + 2 = 18
x + 2y - 3 y - 3z + 5z - x gdy x = 5 y = 8 z = 6
x + 2y - 3 y - 3z + 5z - x = x -y - 2z = 5-8-12 = -15
3 ( x - 4z + y + 4x - z +2y) gdy x = 1 y = 2 z=12
3 ( x - 4z + y + 4x - z +2y) = 3( 3x + 3y -5z) = 9x + 9y - 15z = 9 + 18 - 180 = -153

Answer 3

3a + 3b+ c
15a +2b
z
5x

5x+3, 5* 12= 60, 60+3
8a +b - 6, 8*2 + 2 -6= 12
-y +2z, -8 + 12= 4
3x-12z+3y+12x-3z+6y, 15x +9y -15z, 15*1 + 9*2 -15*12= 213