Question

Indique a incógnita de cada equação?

a) 2x - 3 = 15
b) 4y = 30 - 18
c) 5z - 6 = z + 14
d) m + 4 = 20

Answer 1

a)  X=7
b)Y=3
c)Z=3,33
d)M=16

Answer 2

x=9  x=$\frac{18}{2}$=9
y=3  y=$\frac{12}{4}$ =3
z=5 $\frac{20}{4}$ =5
m=16 m=20-4=16