2 years ago

5x -9=2y por suma y resta ecuacion

Mathematics

1 answer:

Sindrei [870]2 years ago

6 0

Multiplica los números: 5x-9=2y
-45=2y
2y=-45
Y=-45/2
Ecuación:
5x-9=2y
-45=2y
2y=-45

You might be interested in

List the area of each shape on the lines below. Then list the shapes in order from greatest to least.

melisa1 [442]

Answer:4

Step-by-step explanation:

3 0

3 years ago

Find the value of 2cosx+1=0;0 less than x less than 360°

ohaa [14]

Answer:

120°; 240°

Step-by-step explanation:

Let's first solve for $cosx$ : $2cosx=-1 \rightarrow cosx=-\frac12$ At this point it's just a matter of drawing a circle, and mark where the angle is(please excuse my paint skills, but free hand drawing would be even worse). Red line, is $-\frac12$ on the cosines, and both the green and blue lines are valid solutions. The green line is a quarter of a circle, plus 30°, or 120°. The blue one is 3/4 of a circle, minus 30 degrees, or 240°.