Question

Qual o valor das equações

4x+10=2x

X-10+8=-2x+4

8x-30=3x+10

4x+3-x=-x+15

Answer 1

$4x + 10 = 2x \\ 4x - 2x = - 10 \\ 2x = - 10 \\ x = - 5$
$x - 10 + 8 = - 2x + 4 \\ x + 2x = 4 + 10 - 8 \\ 3x = 6 \\ x = 2$
$8x - 30 = 3x + 10 \\ 8x - 3x = 10 + 30 \\ 5x = 40 \\ x = 8$
$4 x + 3 - x = - x + 15 \\ 4x - x + x = 15 - 3 \\ 4x = 12 \\ x = 3$
espero ter ajudado

Answer 2

4x+10=2x

4x - 2x = - 10

2x = - 10

x= - 10/2

x= - 5

X-10+8=-2x+4

x + 2x = 4 + 10 - 8

3x = 14 - 8

3x = 6

x= 6/3

x= 2

8x-30=3x+10

8x - 3x = 10 + 30

5x = 40

x= 40/5

x= 8

4x+3-x=-x+15

4x - x + x = 15 - 3

3x + x = 12

4x = 12

x= 12/4

x= 3