<span><span><span><span>Simplify: x+3/</span>9</span><span><span>x / x+12/</span><span>x+6</span></span></span>
Rewrite the equation by multiplying the reciprocal of </span>
<span><span>x+12/<span>x+6
</span></span><span><span>Now the problem will be as follows, x+3</span>/9</span> ×<span> 6<span>/x+12
The answer is 2(x + 3) / 3 (x + 12).
</span></span></span>
X = 15
X + 90 = 7x
X = 7x - 90
X - 7x = -90
-6x = 90
Divide both sides by -6
X = 15
Answer: 875
Explaination: in order to find how many words he can read in 25 minutes we need to find how many words he can read in one minute then multiply that by the number of minutes he read. Like this
420÷ 12=35 35x25=875
Answer:
(x + 3) × (2x - 7)
Step-by-step explanation:
2x² - x - 21
Write as a difference
2x² + 6x - 7x - 21
Factor the expressions
2x × (x + 3) - 7 (x + 3)
Factor the expression
(x +3) × (2x - 7)