91Ó°ÊÓ

Evaluate each expression if$x=-2,y=6,$and$z=5.$$-2x-3y+2z$

Identify each function as S for step, C for constant, A for absolute value or P for piecewise.

$\frac{7u-1}{4}-1=\frac{4u+8}{5}$

Write each equation in standard form. Identify A, B, and C.

$63.   6x=3y-9$

Identify each function as S for step, C for constant, A for absolute value or P for piecewise.

$\frac{3y-6}{2}+5=\frac{11y-4}{5}$

Write each equation in standard form. Identify A, B, and C.

$   y=\frac{1}{2}x-3$

Solve each equation. Check your solution.

$\left|x\right|-5=8$

$0.4x+0.6=0.5x-1.2$

Write each equation in standard form. Identify A, B, and C.

$  \frac{2}{3}y-6=1-x$