All categories

2 years ago

Solve 4x−5=7+4y for y.

Mathematics

2 answers:

drek231 [11]2 years ago

6 0

4x−5=7+4y

subtract 7 from both side

4x - 5 -7 = 4y

4x -12 = 4y

divide by 4

4x/4 -12/4 = 4y/4

x-3=y

garri49 [273]2 years ago

5 0

Answer:

y = x - 3

Step-by-step explanation:

Given equation,

4x - 5 = 7 + 4y

For finding the equation for y,

We need to isolate y in the left side of the equation,

Now,

Add 5 on the both sides of the above equation,

4x = 7 + 4y + 5

Subtract 4y on the both sides,

4x - 4y = 12

Subtract 4x on both sides,

-4y = 12 - 4x

Divide both sides by -4,

$y=x-3$

You might be interested in

I really need help :)

iren2701 [21]

Answer:

Could anyone help me with this problem please?

What is one value that makes the fraction (x^2 + 11x +30)/(4x + 44x^2 + 120x) Undefined?

Need real help I'm so stressed out

Step-by-step explanation:

8 0

2 years ago

A coral reef grows 0.12 m every week how much does it grow in 12 weeks. In cm

Black_prince [1.1K]

Answer:

1.44 cm

Step-by-step explanation:

0.12 m * 12 weeks = 1.44 cm in 12 weeks

3 0

2 years ago

Answer the question If you're right I'll MARK YOU BRAINLIEST!!

natka813 [3]

Answer:

$2x\sqrt{40x}-2x\sqrt{5}$

Step-by-step explanation:

$2x\sqrt{40x}-2x\sqrt{5}$ is found by first, siplifying the radicals in the parenthesis. $\sqrt{8x^{2} }$ can be simplified as $2x\sqrt{2}$ and $-2\sqrt{x}$ stays the same. Now we have to multiply these two by $\sqrt{5x}$ which then results in $2x\sqrt{40x}-2x\sqrt{5}$