d)
m - 4 = 8 /+4
m = 12
Spr.: 12 - 4 = 8
e)
x + 7 = 11 /-7
x = 4
Spr.: 4 + 7 = 11
f)
y + 4 = 9 /-4
y = 5
Spr.: 5 + 4 = 9
m · 4 = 8 /:4
m = 2
Spr.: 2·4 = 8
x · 7 = 21 /:7
x = 3
Spr.: 3·7 = 21
3 · f = 9 /:3
f = 3
Spr.: 3·3 = 9
2·m - 4 = 8 /+4
2·m = 12 /:2
m = 6
Spr.: 2·6 - 4 = 12 - 4 = 8
8·x + 7 = 15 /-7
8·x = 8 /:8
x = 1
Spr.: 8·1 + 7 = 8 + 7 = 15
-4·h + 5 = 29 /-5
-4·h = 24 /:(-4)
h = -6
Spr.: -4·(-6) + 5 = 24 + 5 = 29
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
A
d)
m - 4 = 8 /+4
m = 12
Spr.: 12 - 4 = 8
e)
x + 7 = 11 /-7
x = 4
Spr.: 4 + 7 = 11
f)
y + 4 = 9 /-4
y = 5
Spr.: 5 + 4 = 9
B
d)
m · 4 = 8 /:4
m = 2
Spr.: 2·4 = 8
e)
x · 7 = 21 /:7
x = 3
Spr.: 3·7 = 21
f)
3 · f = 9 /:3
f = 3
Spr.: 3·3 = 9
C
d)
2·m - 4 = 8 /+4
2·m = 12 /:2
m = 6
Spr.: 2·6 - 4 = 12 - 4 = 8
e)
8·x + 7 = 15 /-7
8·x = 8 /:8
x = 1
Spr.: 8·1 + 7 = 8 + 7 = 15
f)
-4·h + 5 = 29 /-5
-4·h = 24 /:(-4)
h = -6
Spr.: -4·(-6) + 5 = 24 + 5 = 29