Question

Simplifique as expressões

a) 2x - x + 5 x =

b) 3x + 4x + 4 -1 =

c) 5t - 5t + 2 =

d) 10y – 5y – 2y =

e) 5. (y – 2) =

f) 4−42=

g) 6+123+ 7 −217=

h) 8(+4)−42=​

Answer 1

Explicação passo-a-passo:

a)

$2x - x + 5x \\ x + 5x \\ 6x$

B)

$3x + 4x + 4 - 1 \\ 7x + 3$

c)

$5t - 5t + 2 \\ 2$

D)

$10y - 5y - 2y \\ 5y - 2y \\ 3y$

E)

$5(y - 2) \\ 5y - 10$

F)

$4 - 42 = - 38$

G)

$6 + 123 + 7 - 217 \\ 129 + 7 - 217 \\ 136 - 217 \\ - 81$

H)

$8( + 4) - 42 \\ 32 - 42 \\ - 10$