Question

invento un problema que se exprese con la ecuación dada.Luego,halló la solución.​
A) 3× + 3 =15
B) 4× -5 =19
C) × - 7 =9
D) × + 9 = 15 -- 3
E) 5× + 3 = 28
F) × + 10 = 11

Answer 1

A) 3x + 3 = 15
15 - 3= 3x
12 = 3x 12:3=x
4=x
B) 4x - 5 = 19
19 + 5 = 4x
24 = 4x 24:4=x
6=x
C) x - 7 = 9
9 + 7 = x
16=x
D) x + 9 = 15 - (-3)
x + 9 = 18
18 - 9 = x
9 = x
E) 5x + 3 = 28
28 - 3 = 5x
25 = 5x 25:5=x
5=x
F) x + 10 = 11
11 - 10 = x
1 = x