Performing Mathematical Operations on Equation

Q. Write the following expression as a statement:
( 21 ÷ 7 ) - 2

1. 2 less than 21 divided by 7.
2. 21 divided by sum of 7 and 2.
3. Subtract 7 from 21 then divide the difference by 2.
4. 21 minus 7 whole divided by 2.

Q. Find the value of x if 8x - 3 = 3x + 22.

1. 5

Q. The value of $x$ satisfying the equation $(\frac{x}{3}+\frac{x}{4}-\frac{x}{6}=5)$ is

1. $x=12$
2. $x=24$
3. $x=32$
4. $x=22$

Q.

Solve for $x$

$9x=54$

Q. Solve the equation: $3s=-9$

1. s = 3
2. s = -3
3. s = -9
4. s = 9