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verify -7t=3t-30 t=3​

Sagot :

Answer:

Check

-7t=3t-30

Substitute in t = 3

-7(3) = 3(3) -30

-21 = 9-30

-21 = -21

t=3 is the solution

Step-by-step explanation:

-7t=3t-30

Subtract 3t from each side

-7t-3t=3t-3t-30

-10t = -30

Divide each side by -10

-10t/-10 = -30/-10

t = 3

Check

-7t=3t-30

Substitute in t = 3

-7(3) = 3(3) -30

-21 = 9-30

-21 = -21

t=3 is the solution

Verification

To verify a solution, it must be able to render the equation true.

This means that after plugging in the solution into all its placeholders (the variable) and evaluating, both sides of the equation should equal each other.

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Verifying the Problem

We're told that the solution of the equation is t = 3, so we plug in 3 to all of the "t" terms.

                                           -7(3) = 3(3) - 30

                                             -21 = 9 - 30

                                               -21 = -21

Both sides are equal to each other, thus t = 3 is the solution to this equation!