Can someone please help? BASIC ALGEBRA problem

3.  9x+5+x-7=25

4.  10x-2=25

5.  10x=27

Step-by-step explanation:

3.  9x+5+x-7=25

4.  10x-2=25

         10x=25+2

5.  10x=27

          x=27÷10

x=2.7

1010: 3030

is it i think

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.