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2x=10/:2
x=5
b) 4x-3x=-31+5
x=-36
c) x-5x=-4-8
-4x=4/:4
x=1
d) 2x-x=3+6
x=9
3x-x=-2+12
2x=10/:2
x=5
b)4x-5=3x-31
4x-3x=5-31
x=26
c)x+8=5x-4
x-5x=-8-4
-4x=-12/:(-4)
x=3
d)2x-6=x+3
2x-x=6+3
x=9
Mam nadzieje że pomogłam
3x-x=12-2
2x=10 //:2
x=5
b)4x-5=3x-31
4x-3x=-31+5
x=-26
c)x+8=5x-4
x-5x=-4-8
-4x=-12 //:(-4)
x=3
d)2x-6=x+3
2x-x=3+6
x=9
Proszę ^^