Question

Me ajude!! Preciso entregar esse dever amanhã!!

Answer 1

a) 4k + 120 = 200
4k = 200 - 120
4k = 80
k = 80/4
k = 20

b) 2m - 26 = 85 - 11
2m = 85 - 11 + 26
2m = 100
m = 100/2
m = 50

c) x + 65 = 621
x = 621 - 65
x = 556

d) y - 430 = 628 - 33
y = 628 - 33 + 430
y = 1025

e) 17 - 3z + 5z = 1 + z
-3z + 5z - z = 1 - 17
z = -16

f) a - 778 = 88
a = 88 + 778
a = 866

g) 6m + 15 = 750 - 15
6m = 750 - 15 - 15
6m = 720
m = 720/6
m = 120

h) 11 - 10x = 231
10x = 231 - 11
10x = 220
x = 220/10
x = 22

i) 8b - 3b + 27 = 3b - 1
8b - 3b - 3b = -1 - 27
2b = -28
b = -28/2
b = -14