September 2018 2 19 Report

Matematyka wokół nas

Zadanie 3 s. 155

a) 4c-(3c+2)-10c

b) 7x-8-(5x+6)

c) 9y-(8-3y)+16

d) 5x-(2-4x)+8x-7

e) -(-5c-8)+6-9c-c

f) -4(3x-6)-3(2+7x)

g) 5(3z-7)-9(-8z-6)

h) -3(5x-4)+8(-3x+2)

i) 7x-3(5x+2)-6(7+2x)

j) -5(3y-7)-2(6+4y)+3y

Zad 5 s. 155

a) 6(2a-6b+3c)

b) (3x2y+9)*4

c) 3(5x-8z-2)

d) (4x-7y-7)(-2)

e) -8(7n+9p+t)

f) +2(3a+1)+(4a-5)

g) 3(b-5a)-2(3b+a)

h) 5(2x+3y)-(x-2y)


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