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snow_tiger [21]
4 years ago
5

Solve for x. 6(x – 1) = 9(x + 2)

Mathematics
2 answers:
bazaltina [42]4 years ago
8 0
Let's solve your equation step-by-step.<span><span>
6<span>(<span>x−1</span>)</span></span>=<span>9<span>(<span>x+2</span>)</span></span></span>
Step 1: Simplify both sides of the equation.<span><span>
6<span>(<span>x−1</span>)</span></span>=<span>9<span>(<span>x+2</span>)</span></span></span><span>
Simplify:</span><span><span><span><span>
(6)</span><span>(x)</span></span>+<span><span>(6)</span><span>(<span>−1</span>)</span></span></span>=<span><span><span>(9)</span><span>(x)</span></span>+<span><span>(9)</span><span>(2)</span></span></span></span>(Distribute)<span><span><span><span>
6x</span>+</span>−6</span>=<span><span>9x</span>+18</span></span><span><span><span>
6x</span>−6</span>=<span><span>9x</span>+18</span></span>
Step 2: Subtract 9x from both sides.<span><span><span><span>
6x</span>−6</span>−<span>9x</span></span>=<span><span><span>9x</span>+18</span>−<span>9x</span></span></span><span><span><span>
−<span>3x</span></span>−6</span>=18</span>
Step 3: Add 6 to both sides.<span><span><span><span>
−<span>3x</span></span>−6</span>+6</span>=<span>18+6</span></span><span><span>
−<span>3x</span></span>=24</span>
Step 4: Divide both sides by -3.<span><span><span>
−<span>3x</span></span><span>−3</span></span>=<span>24<span>−3</span></span></span><span>
x=<span>−8</span></span><span>
Answer: x= -8

-Hope I helped.</span>
Arlecino [84]4 years ago
8 0

Answer:  The required solution is x = -8.

Step-by-step explanation:  We are given to solve the following equation for x :

6(x-1)=9(x+2)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

To solve the given equation for x, we must take all the terms involving x on one side and the other constant terms on the other side of the equation.

From equation (i), we get

6(x-1)=9(x+2)\\\\\Rightarrow 6x-6=9x+18\\\\\Rightarrow 9x-6x=-6-18\\\\\Rightarrow 3x=-24\\\\\Rightarrow x=-\dfrac{24}{3}\\\\\Rightarrow x=-8.

Thus, the required solution is x = -8.

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