gina0yvsalinner gina0yvsalinner

04-01-2017
Mathematics

contestada

The difference when 7 less than a number is subtracted from twice the number is 12. what is the number?

Respuesta :

04-01-2017

It is 5......2x-(x-7)=12 proof: 2*5-(5-7)=12
2x-x+7=12 10-(-2)=12
x=12-7 10+2=12
x=5 12=12

Answer Link

Otras preguntas

In which 0.01 M solution is phenolphthalein pink? (1) CH3OH(aq) (3) CH3COOH(aq) (2) Ca(OH)2(aq) (4) HNO3(aq)

what is the overall mood created in "Dover Beach" by Matthew Arnold A.bitterness B.sadness C.enthusiam D.vigilance

After being dropped a certain ball always bounces back to 2/5 of the height of its previous bounce. After the first bounce it reaches a height of 125 inches. Ho

Evaluate the function at the given value of the independent variable and simplify. f(x) = 4x2 + 5x - 6; f(x - 1)

Atoms of which element can bond to each other to form chains, rings, and networks? (1) carbon (3) hydrogen (2) fluorine (4) oxygen

What is the chemical formula for sodium sulfate? (1) Na2SO3 (3) NaSO3 (2) Na2SO4 (4) NaSO4

Kira walks 8 1/2 block in 17 minutes . If Kira continues to walk at a steady pace,how many block will she walk each munite?

Which statement describes electrolysis? (1) Chemical energy is used to produce an electrical change. (2) Chemical energy is used to produce a thermal change. (3

Which element is classified as a noble gas at STP?(1) hydrogen (3) neon(2) oxygen (4) nitrogen

How do you solve x-y=1 ; x+y=3. Please Explain