Question

afla termeni necunoscuti din relatiile urmatoare .... 1)a+3×8=522), 2×7+b=40. ,3)c-6×3=39 ,4)10×3-d=15, 5)e-3×6=63. ,6)9×3-f=21 7),g-5×3=49 8),4×3+h=71.

Answer 1

1)a+3x8=522
a=3x8
a=522-24
a=498
2)2x7+b=40
b=2x7
b=40-14
b=26
3)c-6x3=39
c=6x3
c=39+18
c=57
4)10x3-d=15
d=10x3
d=15+30
d=45
5)e-3x6=63
e=3x6
e=63-18
e=45
6)9x3-f=21
f=9x3
f=21+27
f=48
7)g-5x3=49
g=5x3
g=49+15
g=64
8)4x3+h=71
h=4x3
h=71-12
h=59