Ответ:
1) (4x-2)+(5x-4)=9-(5-11x)
4x-2+5x-4=9-5+11x
9x-6=4+11x
9x-11x=4+6
-2x=10
x=5
Пошаговое объяснение:
1) (4x - 2) + (5x-4)= 9-(5-11x);
4x - 2 + 5x - 4 = 9 - 5 + 11x
9x - 6 = 4 + 11x
11x - 9x = -6 - 4
2x = -10
x = -10:2
x = -5
2) (7-8x) - (9-12x) + (5x + 4) = -16;
7 - 8x - 9 + 12x + 5x + 4 = -16
2 + 9x = -16
9x = -16 - 2
9x = -18
x = -18:9
x = -2
3) 3(4x - 5)-10(2x - 1) = 33;
12x - 15 - 20x + 10 = 33
-8x - 5 = 33
8x = -5 - 33
8x = -38
x = -38:8
x = -4,75
4) 9(3(x + 1) - 2x) = 7(x + 1).
9(3x + 3 - 2x) = 7x + 7
27x + 27 - 18x = 7x + 7
9x + 27 = 7x + 7
9x - 7x = 7 - 27
2x = -20
x = -20:2
x = -10
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Answers & Comments
Ответ:
1) (4x-2)+(5x-4)=9-(5-11x)
4x-2+5x-4=9-5+11x
9x-6=4+11x
9x-11x=4+6
-2x=10
x=5
Verified answer
Ответ:
Пошаговое объяснение:
1) (4x - 2) + (5x-4)= 9-(5-11x);
4x - 2 + 5x - 4 = 9 - 5 + 11x
9x - 6 = 4 + 11x
11x - 9x = -6 - 4
2x = -10
x = -10:2
x = -5
2) (7-8x) - (9-12x) + (5x + 4) = -16;
7 - 8x - 9 + 12x + 5x + 4 = -16
2 + 9x = -16
9x = -16 - 2
9x = -18
x = -18:9
x = -2
3) 3(4x - 5)-10(2x - 1) = 33;
12x - 15 - 20x + 10 = 33
-8x - 5 = 33
8x = -5 - 33
8x = -38
x = -38:8
x = -4,75
4) 9(3(x + 1) - 2x) = 7(x + 1).
9(3x + 3 - 2x) = 7x + 7
27x + 27 - 18x = 7x + 7
9x + 27 = 7x + 7
9x - 7x = 7 - 27
2x = -20
x = -20:2
x = -10