A)4x+4x= 424; B)15y-8y=714 C)9z+z=500 D)10k-k=702 E)4l+5l=1200 F)6t+3t-t=6400 Cрочно!!!

Question

A)4x+4x= 424;
B)15y-8y=714
C)9z+z=500
D)10k-k=702
E)4l+5l=1200
F)6t+3t-t=6400
Cрочно!!!

Answer 1

A) 8x=424 ; x=53.
B) 7y=714; y=102.
C) 10z=500; z=50.
D)9k=702; k=78.
E) 9l=1200; l=133..
F) 8t=6400; t=800.
...

Answer 2

А) 4х + 4х = 424
8х = 424
х = 53
в) 15у - 8у = 714
7у = 714
у = 102
с) 92 + z = 500
10z = 500
z = 50
D) 10k - k = 702
9k = 702
k = 78
E) 4l + 5l = 12000
9l = 1200
l = 133,3
F) 6t + 3t - t = 6400
8t = 6400
t = 800