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3 years ago

4 – (2y + 5) = 3(1 – 4y) show steps please

Mathematics

2 answers:

Lelu [443]3 years ago

6 0

Answer/Step-by-step explanation:

Let's solve your equation step-by-step.

4−(2y+5)=3(1−4y)

Step 1: Simplify both sides of the equation.

4−(2y+5)=3(1−4y)

4+−1(2y+5)=3(1−4y)(Distribute the Negative Sign)

4+−1(2y)+(−1)(5)=3(1−4y)

4+−2y+−5=3(1−4y)

4+−2y+−5=(3)(1)+(3)(−4y)(Distribute)

4+−2y+−5=3+−12y

(−2y)+(4+−5)=−12y+3(Combine Like Terms)

−2y+−1=−12y+3

−2y−1=−12y+3

Step 2: Add 12y to both sides.

−2y−1+12y=−12y+3+12y

10y−1=3

Step 3: Add 1 to both sides.

10y−1+1=3+1

10y=4

Step 4: Divide both sides by 10.

10y

Answer:

y= 2/5

Mademuasel [1]3 years ago

6 0

Use distributive property
4 - 2y - 5 = 3 - 12y
Combine like terms
-1 - 2y = 3 - 12y
Add 1 to both side
-2y = 4 - 12y
Add 12y to both side
10y = 4
Divide by 10
Solution: y = 4/10 or 2/5

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Step-by-step explanation:

Exercise 1:

Let suppose that triangle represented in the figure is a right triangle, the length of the missing leg is determined by Pythagorean Theorem:

$y = \sqrt{l^{2}-x^{2}}$ (1)

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$l$ - Hypotenuse, in inches.

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$y$ - Unknown leg, in inches.

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