10x+2=3x+9
znajdź liczbę która z pełnia równanie x
10x + 2 = 3x + 9 /-2
10x = 3x + 7 /-3x
7x = 7 / :7
x = 1
10x-3x=9-2
7x=7 /:7
x=1
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10x + 2 = 3x + 9 /-2
10x = 3x + 7 /-3x
7x = 7 / :7
x = 1
10x+2=3x+9
10x-3x=9-2
7x=7 /:7
x=1