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

How does the heartland theory differ from the rimland theory? The heartland theory was developed in the 1800s, while the rimland theory is a modern concept. The

PLEASE HURRYY!!!! TIMEDDD!!!! WILL MARK BRAINLIEST!! 20 PTS!!! Imagine that you have the chance to study Spanish at a UNAM extension school. Choose where you wo

Creation of the Berlin Wall administration

How did Jackson handicap the Bank of the United States?

Which of the following is a solution to the equation y = x – 4? (1,5) (-3,7) (6,2) (0,4)

can y'all help me out, how can you write a good ending about norway and Iran?

Balanced Forces in Different (opposite) Direction

H 2(g)+I 2(g)→2 H I(g) ΔH∘r x n=−9.5 k J/m o l r x n H 2(g) and I 2(g) can react to produce HI(g) , as represented above. Shown below is an incomplete en

An equation is also called a number sentence. Explain how an equation in mathematics is like a sentence in English.

what is the overall charge of 1.5 x 10^10 electrons?