Question

Me ayudas a resolver estas ecuaciones de 2do grado
1.10x-10=5(x+2)
2.4(x+5)=2x+34
3.10(x+2)=8x+22
4.5(x+4)=3(x+10)-8
5.x+19=2(x+6)
6.4(x+10)=2(x+22)
7.6(x+5)=7x+25
8.7(x+4)=5(x+6)+6
9.4(x+2)=20(x-6)
10.5(x+5)=2x+40

Answer 1

Ok mira haci es como se resuelven, y lo se pq estoy en 2do grado de secundaria.

●Procedimiento paso a paso con las ecuaciones :

1) 10x - 10 = 5 ( x + 2 )
10x - 10 = 5x + 10
10x - 5x = 10 + 10
5x = 20
x = 20/5
x = 4.

R : 4.

2) 4 ( x + 5 ) = 2x + 34
4x + 20 = 2x + 34
4x - 2x = 34 - 20
2x = 14
x = 14/2
x = 7.

R : 7.

3) 10 ( x + 2 ) = 8x + 22
10x + 20 = 8x + 22
10x - 8x = 22 - 20
2x = 2
x = 2/2
x = 1.

R : 1.

4) 5 ( x + 4 ) = 3 ( x + 10 ) -8
5x + 20 = 3x + 30 -8
5x - 3x = 30 -8 - 20
2x = 2
x = 2/2
x = 1.

R : 1.

5) x + 19 = 2 ( x + 6 )
x + 19 = 2x + 12
x - 2x = 12 - 19
- 1x = -7
x = -7/-1
x = 7.

R : 7.

6) 4 ( x + 10 ) = 2 ( x + 22 )
4x + 40 = 2x + 44
4x - 2x = 44 - 40
2x = 4
x = 4/2
x = 2.

R : 2.

7) 6 ( x + 5 ) = 7x + 25
6x + 30 = 7x + 25
6x - 7x = 25 - 30
- 1x = -5
x = -5/-1
x = 5.

R : 5.

8) 7 ( x + 4 ) = 5 ( x + 6 ) + 6
7x + 28 = 5x + 30 + 6
7x - 5x = 30 + 6 - 28
2x = 8
x = 8/2
x = 4.

R : 4.

9) 4 ( x + 2 ) = 20 ( x - 6 )
4x + 8 = 20x - 120
4x - 20x = -120 -8
-16x = -128
x = -128/-16
x = 8.

R : 8.

10) 5 ( x + 5 ) = 2x + 40
5x + 25 = 2x + 40
5x - 2x = 40 - 25
3x = 15
x = 15/3
x = 5.

R: 5.

Espero haberte ayudado muchísimo tq❤