Since the denominator cannot be zero, you can set 4z+1=0 to find the excluded values.
4z+1=0
4z=-1
z=-1/4
And thus, z cannot equal -1/4
Answer:
7x+5=7x+5 they are equal same lines
Step-by-step explanation:
$29.40 ........ 40x0.3=12....... 40-12=28...... 28x1.05= $29.40
Answer:
1
Step-by-step explanation:





Answer:
x=0
Step-by-step explanation:
I must assume that your goal is to "solve for x." State your goal explicitly each time you post a problem.
Combining like terms, we get 4x = 0, so that x = 0.
Check: Is 5(0) - 13 = 0 - 13 true? YES