1. Rozwiąż równania
a) 2 (2x + 5) - 3 (5 + x) = 4 (x + 3) + 2(2x + 2)
b) 4 (2x - 8) - 6 (x - 4) = 2
c) -3 (x + 2) + 2 (2x - 3) = -7 (3 - x ) + 5 (1 - 2x)
2. Rozwiąż równania
a) -5 (2x - 1) + 4 (x - 6) = 3 (5 - x)
b) -3 (2x + 1) - 2(3 -x) = 4 (x - 5) - (2x - 8)
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zad1a) 2 (2x + 5) - 3 (5 + x) = 4 (x + 3) + 2(2x + 2)
4x+10-15+3x=4x+12+4x+4=7x-5=8x+16=15x=-11
b) 4 (2x - 8) - 6 (x - 4) = 2
8x-32-6x-24=2 2x-8=2 2x=10 x=5
c) -3 (x + 2) + 2 (2x - 3) = -7 (3 - x ) + 5 (1 - 2x)
-3x+6+4x-6=-21+7x+5-10x 26=-3x x=-26/3
zad2
a) -5 (2x - 1) + 4 (x - 6) = 3 (5 - x)
-10x+1+4x-24=15-3x -6x+23=15-3x -9x=8