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alekssr [168]
4 years ago
9

I need some help! :0 solve for x. -4.5(x - 8.9) = 12.6

Mathematics
2 answers:
tekilochka [14]4 years ago
7 0
<span><span>−<span>4.5<span>(<span>x−8.9</span>)</span></span></span>=12.6</span>

Step 1: Simplify both sides of the equation.<span><span>−<span>4.5<span>(<span>x−8.9</span>)</span></span></span>=12.6</span><span><span><span><span>(<span>−4.5</span>)</span><span>(x)</span></span>+<span><span>(<span>−4.5</span>)</span><span>(<span>−8.9</span>)</span></span></span>=12.6</span>

(Distribute)<span><span><span>−<span>4.5x</span></span>+40.05</span>=12.6
</span>
Step 2: Subtract 40.05 from both sides.<span><span><span><span>−<span>4.5x</span></span>+40.05</span>−40.05</span>=<span>12.6−40.05</span></span><span><span>−<span>4.5x</span></span>=<span>−27.45

</span></span>Step 3: Divide both sides by -4.5.<span><span><span>−<span>4.5x</span></span><span>−4.5</span></span>=<span><span>−27.45</span><span>−4.5
</span></span></span><span>x=6.1</span>
sashaice [31]4 years ago
5 0
<span>5.8+4.1-12.6+x-8.9=-4.6
We move all terms to the left:
5.8+4.1-12.6+x-8.9-(-4.6)=0
We add all the numbers together, and all the variables
x-7=0
We move all terms containing x to the left, all other terms to the right
x=7</span>
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