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In Mathematics / High School | 2014-11-29

Write an equation to represent the following statement:

Nine times the sum of a number and 2 is 189.

Asked by nannette

Answer (2)

Equation:
9(a+2)=189
Solve the equation:
****9a+18=189
9a=189-18
9a=171
a=171/9
a=19
Check the solution:
****Let a=19
9(a+2)=189
9(19+2)=189
171+18=189
189=189
Therefore, the equation is 9(a+2)=189 and a is 19.

Answered by lekhagummalla | 2024-06-10

The equation representing the statement is 9 ( x + 2 ) = 189 . Solving the equation gives the unknown number as 19. This solution is confirmed by substituting back into the original equation.
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Answered by lekhagummalla | 2024-10-31

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