Question

Equações: A) 10z + 14 = 14z +14 B) 6b - 5 = b + 10 C) 2 (3+x) = 18 D) $\frac{x+4}{2}$ = $\frac{2x +8}{3}$

Answer 1

A) 10z + 14 = 14z +14
10z - 14z= 14- 14
-4z= 0
4z=0
z=0/4
z=0
B) 6b - 5 = b + 10
6b - b= 10 + 5
5b = 15
b= 15/5
B=3
C) 2 (3+x) = 18
6 + 2x = 18
2x = 18 - 6
2x = 12
x = 12/2
x= 6
 D)  = 
3x + 12 = 4x + 16
3x - 4x= 16-12
-x= 4 * (-1)
x= 4