write a two-step equation that involves multiplication and subtraction, includes a negative coefficient, and has a solution of x=7

Respuesta :

-60x+20 = -400
x equals 7

Answer:

Hence, the equation is:

[tex]-3x-7=-28[/tex]

and the solution is:

[tex]3x=28-7\\\\3x=21\\\\x=7[/tex]

Step-by-step explanation:

A two step equation is a equation that takes just two steps to solve.

Now we have to formulate a  two-step equation that involves multiplication and subtraction, includes a negative coefficient, and has a solution of x=7.

negative coefficient means that the coefficient of the variable term must be negative.

so, we take a equation as:

[tex]-3x-7=-28[/tex]

Clearly the coefficient of variable term is: -3 which is negative.

Now we solve the equation as:

[tex]3x=28-7\\\\3x=21\\\\x=7[/tex]

Hence, the equation is:

[tex]-3x-7=-28[/tex]

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