Odpowiedź:
na dole :)
Szczegółowe wyjaśnienie:
a)
4x - 6 = 26 | +6
4x = 32 |:4
x = 8
b) -4 + 3x = 28 | -4
3x = 24 |:3
x = 8
c) -5x - 8 = 27 |+8
-5x = 35 |: (-5)
x = 7
d) 3y + 4 = 19 |-4
3y = 15 |:3
y = 5
e) 2 + 7a = 44 | -2
7a = 42 |:7
a = 6
f) -2t - 13 = 1 |+13
-2t = 14 |: (-2)
t = -7
g) 4x - 8 = 12 | +8
4x = 20 | :4
x = 5
h) 2y + 10 = 2 |-10
2y = -8 |:2
y = -4
i) 5 - 6x = -13 |-5
-6x = -18 |:(-6)
x = 3
j) 9x - 12 = 6 | + 12
9x = 18 | :9
x = 2
k) 7x - 14 = 14 |+14
7x = 28 |:7
x = 4
l) 2 + 5a = -23 |-2
5a = -25 |:5
a = -5
pozdrawiam i liczę na naj :)
