plis obliczcie mi:)
a) 2(z-1)-az=-12-(5+2z) ; z=1
b) 12x+2(x+1)=a(x+2)+14 ; x=(pierwiastek z czterech)
I z góry dzięki;P:P
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a) 2z-2-az=-60+24z
2*1-2-1*a=-60+24*1
-a= -36 |:(-1)
a=36
b) 12x+2x+1=ax+2a+14
12*√3+2√3+1=√3a+2*√3+14
14√3+1=√3a+2√3+14
√3a=14+1+14√3+2√3
√3a=15+16√3 |: √3
a= 16 + 15/√3*√3/√3
a=16+15√3/3
a=16+5√3