Math, asked by alokv9490, 1 day ago

10 +3x -7=7x +8-6x equations ​

Answers

Answered by YennyPenny
0

Step-by-step explanation:

     10+3x-7=7x+8-6x  

10+3x-7+7=7x+8-6x+7       (add 7 to both side)

           10+3x=7x+15-6x            (simplify)

   10 - 10+3x=7x+15-6x-10     (subtract 10 to both sides)

                   3x =7x+5-6x             (simplify)

           3x+6x=7x+5-6x+6x      (add 6x to both sides)

                   9x=7x+5                     (simplify)

           9x -7x=7x+5-7x              (subtract 7x to both sides)

                   2x=5                             (simplify)

                   \frac{2x}{2} = \frac{5}{2}                             (divide 2 to both sides)

                    x = 2.5

Check: PEMDAS

    10+3x-7=7x+8-6x

10+3(2.5)-7=7(2.5)+8-6(2.5)      (replace x to 2.5)

   10+7.5-7=17.5+8-15                (multiply)

         17.5-7=25.5-15                      (add)

               10.5=10.5                              (subtract)

Answer:

x=2.5

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