Answer:
x= -4
graph with a closed circle over the intended number
Step-by-step explanation:
These inequalities are basically the same steps as equation.
Step 1: subtract 7 from the 19 on the other side of the equation, this equals 12
Step 2: divide -3 by 12 this equals -4
For these equations, you have to inverse the operations (i.e + to -). that is why you subtract and divide. (-3x) is the same as multiplication. The coefficient and variable are being multiplied.
Answer:
48÷8, -36÷-12
Step-by-step explanation:
Answer:
<em>Domain:</em> [
3/
2
,
∞
) , {
x ∣
x ≥ 3
/2
}
<em>Range:</em> {
x
|
}
Step-by-step explanation:
To find the domain, find where the function is defined. The range is just the set of values that correspond with the domain.
Answer:
2q -r= p -----(1)
r= q -s -----(2)
p= q +2r -----(3)
From (2):
r +s= q <em>(</em><em>+</em><em>s </em><em>on </em><em>both </em><em>sides)</em>
s= q -r -----(4) <em>(</em><em>-r </em><em>on </em><em>both </em><em>sides)</em>
Substitute. (3) into (1):
2q -r= q +2r
2q -q= 2r +r
q= 3r -----(5)
Substitute (5) into (4):
s= 3r -r
s= 2r (proved)
