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3 years ago

What is x in 3x+3= -2x-12

Mathematics

2 answers:

3241004551 [841]3 years ago

7 0

$3x+3=-2x-12 \\ 3x+2x=-12-3 \\ 5x=-15 \\ x=-3 \\ \\ \text{The answer is x=-3 ;)}$

butalik [34]3 years ago

3 0

$3x+3=-2x-12$
Add 2x
$3x+3+2x=-12$
$5x+3=-12$
Subtract 3
$5x=-12-3$
$5x=-15$
Divide by 5
$x= \frac{-15}{5}$
$x=-3$
The answer is: -3

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Answer:

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2.y-7 = -2(x + 4)

Step-by-step explanation:

1. The general equation form is;

y = mx + b

m is slope b is y-intercept

so we have;

y= 3/4x - 2

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4y = 3x -8

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3 years ago

Why is the value of q?

Rudiy27

Given:

QSR is a right triangle.

QT = 10

TR = 4

To find:

The value of q.

Solution:

Hypotenuse of QSR = QT + TR

= 10 + 4

= 14

Geometric mean of similar right triangle formula:

$\frac{\text { hypotenuse }}{\text { leg }}=\frac{\text { leg }}{\text { part }}$

$$\Rightarrow \frac{14}{q} =\frac{q}{4}$

Do cross multiplication.

$$\Rightarrow14\times 4 =q\times q$

$$\Rightarrow 56 =q^2$

Switch the sides.

$$\Rightarrow q^2 =56$

Taking square root on both sides.

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