Question

Necesito queme den 3 ejercicios de ecuaciones resueltas

gracias de antemano

Answer 1

-3x+10=-20
-3x=-20-10
-3x=-30
x=-30/-3
x=10
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Comprobando:

-3(10)+10=-20
-30+10=-20
-20=-20
-----------------------------------------------
x/3+1=16
3(x/3)+3(1)=3(16)
x+3=48
x=48-3
x=45
______________
Comprobando:

45/3+1=16
15+1=16
16=16
---------------------------------------------
4(x-1)+6(x-1)=30
10(x-1)=30
10x-10=30
10x=30+10
10x=40
x=40/10
x=4
_______________
Comprobando:

4(4-1)+6(4-1)=30
10(4-1)=30
10(3)=30
30=30


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