Question

ayudaaa necesito esas ecuaciones y sus verificaciones

Answer 1

20+3x=40-2
3x=38-20
3x=18
x=6
Verification: 20+18=40-2. ---> 38=38
11+x/6-8=√25
66+x-48/6=5
18+x=30
x=12
Verification: 11+12/6-8=√25
11+2-8=5
13-8=5
5=5


9(x-7)=3²
9x-63=9
9x=72
X=8
Verification: 9(8-7)=9 -> 9(1)=9

(X+3)/2=✓64
(X+3)/2=8
X+3=16
x=13
Verification: (13+3)/2=√64
16/2=8
8=8