amcalma787 amcalma787

21-07-2020
Mathematics

contestada

Solve the equations. 8x + 7y = 39 4x – 14y = –68

Respuesta :

vdveeniris vdveeniris

22-07-2020

Answer:

y = 5, x= 1/2

Step-by-step explanation:

8x+7y = 39

4x - 14y = -68

x = 39/8 - 7/8y

4(39/8 - 7/8y) -14y = -68

19.5 - 3.5y -14y = -68

-17.5y = -87.5

y = 5

x = 39/8 - 7/8(5)

x = 0.5 or 1/2

Answer Link

Otras preguntas

Pls help I’ll brainlest grades close today

Where can you find more information about bolded words in a text? In the chapter title. In the table of contents. In the glossary. In the subtitles.

PLEASE HELP!!!! NEED THE CORRECT ANSWER!PLS

Simplify the expression. 3.7 - 4.7n - 3n + 8

INSTRUCTIONS: Step 1: First, read through the “Experiment Information” Step 2: Next, write your multi-paragraph scientific report in the box below Step 3: Final

Please help if this is correct.

Which selection from the section "I Came To Help" explains why Birmingham was chosen as a place to protest?

Two irregular pentagons are constructed so that every side has a length of 1 unit. Does this necessarily mean that these figures are congruent with one another?

What is Church In Your Own Self?

i need help asap please!! Explain how you can solve a system of linear equations by using multiplication and elimination.