Rozwiąż równania:
a)11(x-1)=4(x+2)
b)26x-[22x-(30-3x)]=38
a)
11·(x - 1) = 4·(x + 2)
11x - 11 = 4x + 8
11x - 4x = 8 + 11
7x = 19 /: 7
x = ¹⁹/₇
x = 2⁵/₇
b)
26x - [22x - (30 - 3x)] = 38
26x - (22x - 30 + 3x) = 38
26x - (25x - 30) = 38
26x - 25x + 30 = 38
x = 38 - 30
x = 8
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a)
11·(x - 1) = 4·(x + 2)
11x - 11 = 4x + 8
11x - 4x = 8 + 11
7x = 19 /: 7
x = ¹⁹/₇
x = 2⁵/₇
b)
26x - [22x - (30 - 3x)] = 38
26x - (22x - 30 + 3x) = 38
26x - (25x - 30) = 38
26x - 25x + 30 = 38
x = 38 - 30
x = 8