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patriot [66]
3 years ago
12

Please help! II know it's easy but I'm stuck. IT'S NOT 1.2

Mathematics
2 answers:
m_a_m_a [10]3 years ago
4 0
8(5x-2) = 64
Use distributive property and multiply 8 by everything in the parentheses. 
40x-16 = 64
Then add 16 to both sides to eliminate the 16 on the left side, leaving the x by itself.
40x=80
Finally, divide each side by 40. This gives you the final answer.
X=2
horrorfan [7]3 years ago
3 0

Let's solve your equation step-by-step.<span><span>8<span>(<span><span>5x</span>−2</span>)</span></span>=64</span>

<span />Step 1: Simplify both sides of the equation.<span><span>8<span>(<span><span>5x</span>−2</span>)</span></span>=64</span>

<span /><span>Simplify: (Show steps)</span><span><span><span><span> (8)</span><span>(<span>5x</span>)</span></span>+<span><span>(8)</span><span>(<span>−2</span>)</span></span></span>=64 </span>(Distribute) <span><span><span><span>40x</span>+</span>−16</span>=64</span><span><span><span>40x</span>−16</span>=64</span>

<span />Step 2: Add 16 to both sides.<span><span><span><span>40x</span>−16</span>+16</span>=<span>64+16</span></span><span><span>40 x</span>=80</span>

<span />Step 3: Divide both sides by 40.<span><span><span>‌<span><span>40x</span>40</span></span>‌</span>=<span><span>‌<span>8040 </span></span>‌</span></span><span>x=<span>2</span></span>

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