91Ó°ÊÓ

Simplify each side of the following equations first, then solve. $$2 x+3 x-5=7+3$$

Suppose \(y=3 x-2 .\) Find \(y\) if: $$x=0$$

Find the value of \(2 x+6\) when \(x=-2\)

Simplify each expression. $$\left(\frac{7}{15}-\frac{11}{30}\right)^{2}$$

Simplify each expression. $$\left(\frac{13}{21}-\frac{13}{35}\right)^{2}$$

Find the value of each of the following expressions when \(x = 5\). $$7 x-8$$

Find the value of each of the following expressions when \(x = 5\). $$-8+3 x$$

Find the value of each of the following expressions when \(a = -2\). $$-4+3 a$$

Find the reciprocal of each number. $$\frac{1}{3}$$

Find the value of each of the following expressions when \(x=3 .\) You may substitute 3 for \(x\) in each expression the way it is written, or you may simplify each expression first and then substitute 3 for \(x .\) $$3 x+5 x+4$$