Question

como fazer essas equações de 1 grau

a)8x-6=6x

b)y+10=6

c)3t-1=11

d)t=8-2t

Answer 1

a) 8x-6=6x
8x-6x=6
2x=6
x= 6/2
x=3

b) y+10=6
y=6-10
y=-4

c) 3t-1=11
3t=11+1
3t=12
t=12/3
t=4

d) t=8-2t
t+2t=8
3t=8
t=8/3

Answer 2

A)

$8x - 6 = 6x \\ \\ 8x - 6x - 6 = 0 \\ \\ 2x - 6 =0 \\ \\ 2x = 6 \\ \\ x = \frac{6}{2} \\ \\ x = 3$

B)

$y + 10 = 6 \\ \\ y = 6 - 10 \\ \\ y = - 4$

C)


$3t - 1 = 11 \\ \\ 3t = 11 + 1 \\ \\ 3t = 12 \\ \\ t = \frac{12}{3} \\ \\ t = 4$

D)

$t = 8 - 2 t \\ \\ t + 2t = 8 \\ \\ 3t = 8 \\ \\ t = \frac{8}{3} \\ \\ t \approx 2,66$