2. Rozwiąż równania.
a) 10x+4=7
b) 4x-3-9
c)-2x+2=-7
d) 6x+5=4x
e) 9x-3=2x+5
f) -3x+4= -5x-1
Proszę na teraz
a) 10x+4=7
b) 4x-3-9
c)-2x+2=-7
d) 6x+5=4x
e) 9x-3=2x+5
f) -3x+4= -5x-1
Proszę na teraz
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Verified answer
a) 10x + 4 = 7
10x = 7 - 4
10x = 3
x = 3/10
b) 4x - 3 = 9
4x = 9 + 3
4x = 12
x = 3
c) -2x + 2 = -7
-2x = -7 - 2
-2x = -9
x = 9/2
d) 6x + 5 = 4x
6x - 4x = -5
2x = -5
x = -5/2
e) 9x - 3 = 2x + 5
9x - 2x = 5 + 3
7x = 8
x = 8/7
f) -3x + 4 = -5x - 1
-3x + 5x = -1 - 4
2x = -5
x = -5/2
Odpowiedzi:
a) x = 3/10
b) x = 3
c) x = 9/2
d) x = -5/2
e) x = 8/7
f) x = -5/2
Odpowiedź:
10x+4=7
10x=7-4
10x=3/:10
x=3/10
b) 4x-3-9
4x-1
c) -2x+2=-7
-2x=-7-2
-2x=-9/:(-2)
x=9/2
d) 6x+55=4x
6x-4x=-5
2x=-5/:2
x=-5/
e) 9x-3=2x+
9x-2x=5+3
7x=8
x=8/7
f) -3x+4=-5x-1
-3x+5x=-1-4
2x=-5
x=-5/
Szczegółowe wyjaśnienie: