Question

[4 - 2 x (3 x a + 1)] x 5+ 7 = 17​

Answer 1

[4 - 2 x (3 x a + 1)] x 5 + 7 = 17

[4 - 2 x (3 x a + 1)] x 5 = 17 - 7

[4 - 2 x (3 x a + 1)] x 5 = 10

[4 - 2 x (3 x a + 1)] = 10 : 5

[4 - 2 x (3 x a + 1)] = 2

[4 - 2 x ( a + 1)] = 2 : 3

[4 - 2 x ( a + 1)] = 1

4 - 2 x a = 1 - 1

4 - 2 x a = 0

2 x a = 0 + 4

2 x a = 4

a= 4 : 2

a= 0

sper că te-am ajutat ❤