Odpowiedź:
A - -6c-(3c+2) = -6c -3c -2 = -9c -2
B- 7x-8-(5x+6) = 7x-8-5x-6 = 2x - 14
C- 9y -(8-3y) +16 = 9y -8 +3y +16 = 12y +8
D - 5x-(2-4x)+8x-7 = 5x-2+4x+8x-7 = 17x -9
E- 6-(-5c-8)-10c = 6+5c+8-10c = -5c+14
F- -4(3x-6)-3(2+7x) = -12x+24-6-21x = -33x +18
G- 5(3z-7)-9(-8z-6) = 15z -35 +72z+54 =87z+19
H- 7x-3(5x+2)-6(7+2x)=7x-15x-6-42-12x = -20x-48
Szczegółowe wyjaśnienie:
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Odpowiedź:
A - -6c-(3c+2) = -6c -3c -2 = -9c -2
B- 7x-8-(5x+6) = 7x-8-5x-6 = 2x - 14
C- 9y -(8-3y) +16 = 9y -8 +3y +16 = 12y +8
D - 5x-(2-4x)+8x-7 = 5x-2+4x+8x-7 = 17x -9
E- 6-(-5c-8)-10c = 6+5c+8-10c = -5c+14
F- -4(3x-6)-3(2+7x) = -12x+24-6-21x = -33x +18
G- 5(3z-7)-9(-8z-6) = 15z -35 +72z+54 =87z+19
H- 7x-3(5x+2)-6(7+2x)=7x-15x-6-42-12x = -20x-48
Szczegółowe wyjaśnienie: