Question

7×-15=20
×+5×=10+3
4×-9×+2=7×-15×+5​

Answer 1

Respuesta:

7×-15=20

7x=20+15

X=35/7

X= 5

×+5×=10+3

X=13-5

X=8

4×-9×+2=7×-15×+5

4x-9x-7x+15x=5-2

3x=3

X=3/3

X=1

Answer 2

Respuesta:

7x-15 = 20

7x = 20+15

7x = 35

7x/7 = 35/7

x = 5

x+5x = 10+3

6x = 13

6x/6 = 13/6

x = 13/6

4x-9x+2 = 7x-15x+5

-5x+2 = -8x+5

-5x+8x = 5-2

3x = 3

3x/3 = 3/3

x = 1​

Explicación paso a paso: