Знайти корені рівняння \( \lg (2 x+1)=\lg x \) -1 1 немає коренів 2

USING EQUATIONS to solve WORD PROBLEMS Directions: Set up and solve an equation for 12. Find three consecutive even integers such that of the smallest integer and twice the median integer is 20 more than the largest integer.

USING EQUATIONS to solve WORD PROBLEN Directions: Set up and solve an equation for each problem below. \( \begin{array}{l}\text { 2. Five less than twice a number is equal to one } \\ \text { half the difference of three times the number } \\ \text { and 13. Find the number. }\end{array} \)

USING EQUATIONS to solve WORD PROBLEMS Directions: Set up and solve an equation for each problem below. 1. The product of 7 and a number, increased by 3, is equal to twice the number, subtracted from 39. Find the number.

USING EQUATIONS to solve WORD PROBLE Directions: Set up and solve an equation for each problem below. 10. The sum of four consecutive integers is 222 . Find the integers.

Two cubic roots are given below. \( \sqrt[3]{27} \) and \( \sqrt[3]{343} \) Write \( \mathrm{a} \times \mathrm{a} \times \mathrm{a} \times \mathrm{a} \times \mathrm{a} \times \mathrm{a} \) in the form of indices (b) Multiply the given two cubic roots. c) Prove that: \( \left(\frac{\mathrm{x}^{a}}{\mathrm{x}^{b}}\right)^{a+b}\left(\frac{x^{b}}{x^{c}}\right)^{b+c}\left(\frac{\mathrm{x}^{c}}{\mathrm{x}^{a}}\right)^{c+a}=1 \)