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4 years ago

What is the solution to this equation 10x-15x+5=-45+20

Mathematics

2 answers:

nataly862011 [7]4 years ago

8 0

Answer:

Step-by-step explanation:

$10x - 15x + 5 = - 45 + 20$

Collect like terms

$- 5x + 5 = - 45 + 20$

Calculate the sum

$- 5x + 5 = - 25$

Move constant to RHS and change its sign

$- 5x = - 25 - 5$

Calculate

$- 5x = - 30$

Divide both sides of the equation by -5

$\frac{ - 5x}{ - 5} = \frac{ - 30}{ - 5}$

Calculate

$x = 6$

Hope this helps...

Best regards!!

kvasek [131]4 years ago

4 0

Answer:

x = 6

Step-by-step explanation:

10x - 15x + 5 = -45 + 20

→ Simplify the 10x - 15x

-5x + 5 = -45 + 20

→ Simplify the -45 + 20

-5x + 5 = -25

→ Minus 5 both sides from to isolate -5x

-5x = -30

→ Divide by -5 from both sides from to isolate x

x = 6

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3 years ago

If QR = 9 and ST = 13 calculate LM.

pickupchik [31]

Answer:

$\boxed{\sf LM = 11}$

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4 years ago

BRAINLIEST ASAP! PLEASE HELP ME :)

vitfil [10]

Answer:

$\large \boxed{69^{\circ}}$

Step-by-step explanation:

Let y = m∠Y.

Then 90 - y = the complement of ∠Y

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$\begin{array}{rcll}y & = & 3(90 - y) + 6 & \\& = & 270 - 3y + 6 & \text{Distribuetd the 3}\\& = & 276 - 3y & \text{Simplified}\\4y &= & 276 & \text{Added 3y to each side}\\y & = & \mathbf{69} & \text{Divided each side by 4}\\\end{array}\\m \angle Y = \large \boxed{\mathbf{69^{\circ}}}$

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3 years ago

What is 8q+12=4(3+3q)

Elena-2011 [213]

Answer:

q = 0

Step-by-step explanation:

8q + 12 = 4( 3 + 3q )

Distributive property

8q + 12 = 4 ( 3 + 3q )

8q + 12 = 12 + 12q

Inverse operations

8q + 12 = 12 + 12q

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12 = 12 + 4q

-12 -12

0 = q

q = 0

4 0

3 years ago

Read 2 more answers