Question

Doprowadz do najprostrzej postaci
a) 3 -(2a-5)+4a=
b)-2(x-3)-(4-5x)=
c)6w-2(4-w)-8=
d)-5-(3y-4-8y)=
e) x=-1
-2(3-2x)-(x-4)=

Answer 1

A) 3 -(2a-5)+4a= 3 - 2a + 5 + 4a = 2a + 8
b)-2(x-3)-(4-5x)= - 2x + 6 - 4 + 5x = 3x + 2
c)6w-2(4-w)-8= 6w - 8 + 2w - 8 = 8w - 16
d)-5-(3y-4-8y)= - 5 - 3y + 4 + 8y = 5y - 1

e) x=-1
-2(3-2x)-(x-4)= - 6 + 4x - x + 4= 3x - 2
3·( - 1) - 2 = - 3 - 2 = - 5