Enter the value for y that makes the equation 3y – 5y – (2y – 6) = 8y – 2(9y – 6) true.

Mathematics

1 answer:

romanna [79]3 years ago

8 0

Answer:

y = 1

Step-by-step explanation:

So to find the value of y that makes the equation true we have to calculate the value of y.

3y - 5y - (2y - 6) = 8y - 2(9y - 6)

First we have distribute;

3y - 5y - 2y + 6 = 8y - 18y + 12

Collect like terms next;

-4y + 6 = -10y + 12

Add 10y to both sides

6y + 6 = 12

Subtract 6 from both sides

6y = 6

Divide both sides by 6

y = 1

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Whoever can answer this will get brainlyest

azamat

Answer:

The proportion is $\frac{35}{108}$ = $\frac{x}{84}$ , and the length of the unknown side is $\frac{245}{9}$ or 27.22 approximately rounded to the nearest hundredth.

Step-by-step explanation:

Since the triangles are similar, the proportion of corresponding sides are equal. The pairs of corresponding sides in these triangles which we'll use to solve it are LK, KE, MK, and KF. LK and KE are corresponding sides, and their proportion is $\frac{35}{108}$ . MK and KF are corresponding sides, and their proportion is $\frac{x}{84}$ in which x represents the missing side. The proportions are equal, so $\frac{35}{108}$ = $\frac{x}{84}$ . Multiply both sides by 84 to isolate the variable, and you'll get $x = \frac{35*84}{108}$ , which is $\frac{2940}{108}$ or $\frac{245}{9}$ .