Zadanie matematyka ;) Daje Najjj
a) 3x - 8 = 5x+4
b) (2x - 7 ) - (5x - 7) = 2x - 4
c) 3 * (4x+2) - 2 * (x-9) = 3x - 1
d) -4 * (5x - 7) +2 - (-9x -3)=(3x - 4) * 5
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a)
3x-5x=12
-2x=12/:(-2)
x=6
b)
2x-7-5x+7=2x-4
2x-5x-2x=-4+7-7
-5x=-4/:(-5)
x=1 1/5
c)
12x + 6 - 2x+18=3x-1
12x-2x-3x=-1-6-18
7x=-25/:7
x=3 4/7
d)
-20x-28+2+9x+3=15x-20
-20x+9x-15x=-20+28-2-3
4x=3/:4
x=1,3