[tex]\huge\fbox{Answer ☘}[/tex]
[tex]7(8) - 6 \div 2 + (a)3 = 107 \\ 56 - 3 + 3a = 107 \\ 53 + 3a = 107 \\ 3a = 107 - 53 \\ 3a = 54 \\ a = \cancel\frac{54}{3} = 18[/tex]
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The value of A in the expression is 18
The expression is given as:
[tex](7)8 - 6 \div 2 + (A)3 = 107.[/tex]
Evaluate the quotient
[tex](7)8 - 3 + (A)3 = 107.[/tex]
Open all brackets
[tex]56 - 3 +3A = 107.[/tex]
Subtract 3 from 56
[tex]53 +3A = 107.[/tex]
Subtract 53 from both sides
[tex]3A = 54[/tex]
Divide both sides by 3
[tex]A = 18[/tex]
Hence, the value of A in the expression is 18
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