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Maurinko [17]
2 years ago
8

Answer plz. Zzzzxxzzz

Mathematics
2 answers:
GuDViN [60]2 years ago
8 0

Answer:

m = -12

Step-by-step explanation:

Simplify the Left Hand Side:

-5\left(3m+6\right) = -5\cdot \:3m+\left(-5\right)\cdot \:6

=-15m-30

Simplify the Right Hand Side:

-3\left(4m-2\right)=-3\cdot \:4m-\left(-3\right)\cdot \:2

=-3\cdot \:4m+3\cdot \:2

= -12m+6

All together we have:

-15m-30=-12m+6

Add 30 to both sides and simplify:

-15m-30+30=-12m+6+30

-15m=-12m+36

Add 12m to both sides and simplify:

-15m+12m=-12m+36+12m

-3m=36

Finally, we divide both sides by -3:

\frac{-3m}{-3}=\frac{36}{-3}

And we get the answer

m = -12

Bezzdna [24]2 years ago
7 0

Answer:

m= -12

Step-by-step explanation:

-15m-30=-12m+6

-3m=36

m=-12

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This method puts variable and constant together until the end. The approach usually taught is to separate the variable terms and constant terms. (The number of steps required is the same either way.)

The reason this is "no brain" is that it always works and requires no judgment as to what you add or subtract from where. Applying a little judgment as described above can make it so you're mostly working with positive numbers, but the method works whether the numbers are positive or negative.

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