Answer:
x=-1
Step-by-step explanation:
y=4x+10
y=3x+9
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4x+10=3x+9
4x-3x=9-10
x=-1
The second step is to keep your x terms on the left and move the constant to the right by subtracting it from both sides.
The midpoint of the segment:
(4, 7)
x=4 y= -7
Step-by-step explanation:
let two successive integers n, n+1
difference of the reciprocals:

Answer:
the answer is20 inches
Step-by-step explanation:
a square has 4 sides so you divide the total of 80 by 4.
80÷4=20