Question

Reducir a la minima expresión
a) 2(a+4)-a-3
b) 5(z-2)-(8+z)+2
c) 7n-3(3n-1)+2n-9
d) 10(t-4)-4(2t-5)
e) 8r-(3r-6)-(r-7)
PARA HOY!!!​

Answer 1

#1

= 2(a + 4) - a - 3

= 2a + 8 - a - 3

= a + 5

#2

= 5(z - 2) - (8 + z) + 2

= 5z - 10 - 8 - z + 2

= 4z - 16

#3

= 7n - 3(3n - 1) + 2n - 9

= 7n - 9n + 3 + 2n - 9

= -6

#4

= 10(t - 4) - 4(2t - 5)

= 10t - 40 - 8t + 20

= 2t - 20

#5

= 8r - (3r - 6) - (r - 7)

= 8r - 3r + 6 - r + 7

= 4r + 13