Simplify 8 - {x - (5 + x)}
2 answers:
<span>−<span>8<span>(<span>x−<span>(<span>5+x</span>)</span></span>)</span></span></span><span>=<span><span>(<span>−8</span>)</span><span>(<span><span>x+<span>−5</span></span>+<span>−x</span></span>)</span></span></span><span>=<span><span><span><span>(<span>−8</span>)</span><span>(x)</span></span>+<span><span>(<span>−8</span>)</span><span>(<span>−5</span>)</span></span></span>+<span><span>(<span>−8</span>)</span><span>(<span>−x</span>)</span></span></span></span><span>=<span><span><span>−<span>8x</span></span>+40</span>+<span>8x</span></span></span><span>=<span>40</span></span>
8 - {x - (5 + x)}
= 8 - {x - 5 - x}
= 8 + 5
= 13
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Answer: Deal one: 5x+10
Deal two: 6x
