Start by multiplying both sides of the equation by 7 (the common denominator).

Add 4z to both sides.

Add 189.
Answer:
Step-by-step explanation:
If you use the triangle inequality theorem you just add the first two sides to determine if the number is bigger than the third side if so it can form a triangle that's the first step. Just repeat with a b and c a+b a+c and b+c, and it will help you determine what type of triangle it is.
I believe the first set can, angle a and c are larger than angle b I can't be sure about the other one. I'm sorry I hope this helps push you some direction forward.
Answer:
First we find the value of x,
x ≥ -4
Step-by-step explanation:
3x+7 ≥ -5
3x ≥ -5 -7
3x ≥ -12
x ≥ -4
Now to graph this inequality, consider number line.
numbers greater than and equal to -4 are -3,-2,-1,0 and so on.
Note that in solution -4 is included so in graphing we use dot (filled circle).
Answer:
32
Step-by-step explanation:
267+21=288
288/9=32