Odpowiedź:
a) x + 6 / 6 = 7 |·6
x + 6 = 42 |-6
x = 36
b) 2x - 8 / 4 = 16 |*4
2x - 8 = 54 |+8
2x = 62 |:2
x = 31
c) 13 + a / 7 = 30 |*7
13 + a = 210 |-13
a = 197
d) y/3 + 2 = 12 |-2
y/3 = 10 |*3
y = 30
e) 6 + m/5 = 14 |-6
m/5 = 8 |*5
m = 40
f) x/2 - 12 = 40 |+12
x/2 = 52 |*2
x = 104
pozdrawiam amelia
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Odpowiedź:
a) x + 6 / 6 = 7 |·6
x + 6 = 42 |-6
x = 36
b) 2x - 8 / 4 = 16 |*4
2x - 8 = 54 |+8
2x = 62 |:2
x = 31
c) 13 + a / 7 = 30 |*7
13 + a = 210 |-13
a = 197
d) y/3 + 2 = 12 |-2
y/3 = 10 |*3
y = 30
e) 6 + m/5 = 14 |-6
m/5 = 8 |*5
m = 40
f) x/2 - 12 = 40 |+12
x/2 = 52 |*2
x = 104
pozdrawiam amelia