Question

ECUACIONES DE PRIMER GRADO CON PARENTESIS
RESUELVE CADA UNA DE LAS ECUACIONES LUEGO COMPLETA CON LA SOLUCIÓN DE CADA UNO


7(×+8)= -7

5(2×-5)= -25

6(3×-2)=24

9(3×-7)=18

4(×-9)= -16

3(2×-5)=45+4×

2(3×-7 )=4×-6

2(×+8)=40- ×
AYUDENME PORFIS

Answer 1

Respuesta:

$7(x+8)= -7 \\ 7x + 56 = - 7 \\ 7x = - 7 - 56 \\ 7x = - 63 \\ x = \frac{ - 63}{7} \\ x = -9$

$5(2x-5)= -25 \\ 10x - 25 = - 25 \\ 10x = - 25 + 25 \\ 10x = 0 \\ x = 0$

$6(3x-2)=24 \\ 18x - 12 = 24 \\ 18x = 24 + 12 \\ 18x = 36 \\ x = \frac{36}{18} \\ x = 2$

$9(3x-7)=18 \\ 27x - 63 = 18 \\ 27x = 18 + 63 \\ 27x = 81 \\ x = \frac{81}{27} \\ x = 3$

$4(x-9)= -16 \\ 4x - 36 = - 16 \\ 4x = - 16 + 36 \\ 4x = 2 0\\ x = \frac{20}{4} \\ x = 5$

$3(2x-5)=45+4x \\ 6x - 15 = 45 + 4x \\ 6x - 4x = 45 + 15 \\ 2x = 60 \\ x = \frac{60}{2} \\ x = 30$

$2(3x-7 )=4x-6 \\ 6x - 14 = 4x - 6 \\ 6x - 4x = - 6 + 14 \\ 2x = 8 \\ x = \frac{8}{2} \\ x = 4$

$2(x+8)=40- x \\ 2 x + 16 = 40 - x \\ 2x + x = 40 - 16 \\ 3x = 24 \\ x = \frac{24}{3} \\ x = 8$