Answer:
1 = Yes
2 = NO
Step-by-step explanation:
Step-by-step explanation:
from the graph it's seen there's a dot on -5 so it's also considered
and since it considered -5 and greater.
Simplifying
3x + 25 = 2x + 20
Reorder the terms:
25 + 3x = 2x + 20
Reorder the terms:
25 + 3x = 20 + 2x
Solving
25 + 3x = 20 + 2x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2x' to each side of the equation.
25 + 3x + -2x = 20 + 2x + -2x
Combine like terms: 3x + -2x = 1x
25 + 1x = 20 + 2x + -2x
Combine like terms: 2x + -2x = 0
25 + 1x = 20 + 0
25 + 1x = 20
Add '-25' to each side of the equation.
25 + -25 + 1x = 20 + -25
Combine like terms: 25 + -25 = 0
0 + 1x = 20 + -25
1x = 20 + -25
Combine like terms: 20 + -25 = -5
1x = -5
Divide each side by '1'.
x = -5
Simplifying
x = -5
Answer:
x = 30.97 ( to nearest hundredth).
Step-by-step explanation:
5^x = 8^x-7
Taking logs of both sides:-
ln 5^x = ln 8^x
By the law of logarithms:-
x ln 5 = (x - 7) ln 8
x / (x - 7) = ln 8 / ln 5
x / (x - 7) = 1.292
x = 1.292x - 9.044
1.292x - x = 9.044
x = 9.044 / 0.292
= 30.97 (answer)