Answer
a. $4x=20$
b. $x+(-5)=32$
c. $x-15=-23$
d. $5(x-7)=-8$
e. $ \frac{3x}{5}=1$
Work Step by Step
a. Four times x means $4\times x=4x$ . This is equal to 20, therefore $4x=20$
b. 'The sum' indicates addition, therefore $x+ (-5)$. This is equal to 32. So, $x+(-5)=32$
c. Fifteen subtracted from a number (x) means
$15-x$. This is equal to -23. So
$x-15=-23$
d. The difference of a number and 7 means $x-7$. Five times x-7 is
$5 (x-7)$. This is equal to -8. So
$5(x-7)=-8$
e. Triple a number (x) is $3x$.
The quotient of 3x and 5 is
$\frac{3x}{5}$
This is equal to 1. So
$ \frac{3x}{5}=1$
