September 2018 1 9 Report

Oblicz :

a ) -2(a-b)-4(a+3b)+ 5(4a-b) = ?

b ) 0,5(x-2)+ (trzy/czwarte) ( 4x-2y)- 3(0,5x-1,5y) = ?

c ) 4(2x-3y - 5z) - ) - (jedna/druga) (6x-12y-8z) = ?

d ) 12 { 3(a-2b) = 5(2a - 3b)} - 4 (5a-6b ) = ?

e ) 3 {-2(x-3y-1) - ( 3-4y + x ) } = ?

f ) 3( x -2y + 1 ) + 4(2x-3y+4 ) - (3x- 7y = 2 ) = ?

Jest ego trochę dużo , ale odwdzięcze sie :)


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