Answer:
Options: A, B, and C correctly solve for x.
Step-by-step explanation:
A).
[tex]\frac{5}{2} x[/tex] = [tex]\frac{15}{2}[/tex]
Multiplying both sides by 2 gives;
5x = 15
x = 15 ÷ 5 = 3
∴ This option correctly solve for x.
B).
x + [tex]\frac{7}{2}[/tex] = 7
x = 7 - [tex]\frac{7}{2}[/tex] = [tex]\frac{14}{2} -\frac{7}{2} = \frac{7}{2}[/tex]
∴ This option correctly solve for x.
C).
x + 3 = [tex]\frac{21}{5}[/tex]
x = [tex]\frac{21}{5} - \frac{15}{5} = \frac{6}{5}[/tex]
But the option give x as 5/6 hence this option does not correctly solve for x.
D).
5x = 11/2
x = 11/2 ÷ 5 = 11/2 × 1/5 = 11/10
But the option gives x as 10/11 so it does not correctly solve for x.
