Number of text messages Keisha sent: 16
Number of text messages Miguel sent: 21
Number of text messages Pablo sent: 32
Step-by-step explanation:
Total messages sent = 69
Let,
Messages sent by Keisha = x
Messages sent by Miguel = y
Messages sent by Pablo = z
According to given statement;
x+y+z=69 Eqn 1
y=x+5 Eqn 2
z=2x Eqn 3
Putting Eqn 2 and 3 in Eqn 1
[tex]x+(x+5)+2x=69\\x+x+5+2x=69\\4x=69-5\\4x=64[/tex]
Dividing both sides by 4;
[tex]\frac{4x}{4}=\frac{64}{4}\\x=16[/tex]
Putting x=16 in Eqn 2
[tex]y=16+5=21[/tex]
Putting x=16 in Eqn 3
[tex]z=2(16)=32\\[/tex]
Number of text messages Keisha sent: 16
Number of text messages Miguel sent: 21
Number of text messages Pablo sent: 32
Keywords: addition, linear equation
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