danaysia9 danaysia9

03-09-2020
Mathematics

contestada

Solve for n 19 + 10n = 7n - 20

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

03-09-2020

Answer:

n = -13

Step-by-step explanation:

19 + 10n = 7n - 20

Subtract 7n from each side

19 + 10n-7n = 7n-7n - 20

19+3n = -20

Subtract 19 from each side

19+3n -19 = -20-19

3n = -39

Divide each side by 3

3n/3 = -39/3

n = -13

Answer Link

Otras preguntas

Where is the water table located? A. Below the layer of bedrock B. Under the zone of saturation C. In the layer of bedrock D. At the top of the zone of saturati

millie has a box of 1 hundred cubes. she also has a bag of 70 cubes. how many trains of 10 cubes can she make?

What is 15 divided by 266 with a remainder of 11?

Let's examine _____ for tone and style. ours our's

round 6,254 to the nearest thousand

Numbers such as 1, 4, 9, 16, and 25 are called

Describe a situation in which you must be particularly articulate

what property describes the number sentence 6+0=6?

What multiplies to 5 and adds to 6

Sand particles carried by wind can grind against the surface of rocks. This is called _____.