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3 years ago

15

What is the value of z in the equation 4(2z + 3) = 12?

2 answers:

artcher [175]3 years ago

7 0

First u have to expand the brackets...
4 x 2z = 8z
4 x 3 = 12
8z + 12 = 12
Then you have to get numbers on one side, and letter on the other...
8z -12 = 12-12
8z = 0
then u have to divide 8z by 8 to find 1z or just z.
z = (0/8) = 0
z=0
Hope this helps :)

xxMikexx [17]3 years ago

6 0

<span>4<span>(<span><span>2z</span>+3</span>)</span></span>=<span>12
</span><span><span><span><span>(4)</span><span>(<span>2z</span>)</span></span>+<span><span>(4)</span><span>(3)</span></span></span>=12</span><span>(Distribute)
</span><span><span>8z</span>+12</span>=<span>12
</span><span>Step 2: Subtract 12 from both sides
</span><span><span><span>8z</span>+12</span>−12</span>=<span>12−<span>12
</span></span><span>8z</span>=<span>0
</span><span>Step 3: Divide both sides by 8
</span><span><span>8z/</span>8</span>=<span>0/<span>8
</span></span>z=<span>0</span>

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