holaa, me podrían ayudar a resolver las siguientes ecuaciones?
1) 7x – 18 = 5 ( x + 2)
2) 2x + 22 – 3x = 4 + 8x
3) 5 ( 2x – 1) + 3 ( x – 2) = 10 ( x +1)
4) 10² + 8 = 12 h - 6²
5) b : 5 + √108 − 27 = 3² + 3
6) 3 k – 2²:2 + 4 = 21 - √49
Respuestas a la pregunta
Explicación paso a paso:
1) 7x - 18 =5(x + 2)
7x - 18 = 5x + 10
7x - 5x = 18 + 10
2x = 28
x = 14
2) 2x + 22 - 3x = 4 + 8x
22 - x = 4 + 8x
22 - 4 = 8x + x
18 = 9x
18/9 = x
2 = x
3) 5(2x - 1) + 3(x - 2) = 10(x + 1)
10x - 5 + 3x - 6 = 10x + 10
13x - 11 = 10x + 10
13x - 10x = 10 + 11
3x = 21
x = 21/3
x = 7
4) 10² + 8 = 12h - 6²
100 + 8 = 12h - 36
108 = 12h - 36
108 + 36 = 12h
144 = 12h
144/12 = h
12 = h
5) b : 5 + √(108 − 27) = 3² + 3
b/5 + √81 = 9 + 3
b/5 + 9 = 9 + 3
b/5 = 9 - 9 + 3
b/5 = 3
b = 3 × 5
b = 15
6) 3k – 2²:2 + 4 = 21 - √49
3k - 4/2 + 4 = 21 - 7
3k - 2 + 4 = 14
3k + 2 = 14
3k = 14 - 2
3k = 12
k = 12/3
k = 4