Proszę o Obliczenia z góry dziękuję
a)7x-6= -6x+7
b)1/3 x +2=x
c)-7(2x+1)=4
d)8=6(x-1)-4x
a)
7x - 6 = -6x + 7
7x + 6x = 7 +6
13x = 13
x = 1
b)
1/3 x + 2 = x
1/3x - x = -2
-2/3x = -2
x = -2 *(-3/2)
x = 3
c)
-7(2x +1) = 4
-14x - 7 = 4
-14x = 4 + 7
-14x = 11
x = -11/14
d)
8 = 6(x - 1) - 4x
8 = 6x - 6 - 4x
8 = 2x - 6
8 + 6 = 2x
2x = 14
x = 7
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a)
7x - 6 = -6x + 7
7x + 6x = 7 +6
13x = 13
x = 1
b)
1/3 x + 2 = x
1/3x - x = -2
-2/3x = -2
x = -2 *(-3/2)
x = 3
c)
-7(2x +1) = 4
-14x - 7 = 4
-14x = 4 + 7
-14x = 11
x = -11/14
d)
8 = 6(x - 1) - 4x
8 = 6x - 6 - 4x
8 = 2x - 6
8 + 6 = 2x
2x = 14
x = 7