3 years ago

Solve by elimination -3x+2y=10 -2x-y=-5

1 answer:

6 0

First you need to get two similar terms to eliminate, I'll do y:
-3x + 2y = 10
-4x - 2y= -10
And then you minus
x = 20
Now you can substitute x in to one of the equations to find y:
-60 + 2y = 10
+ 60
2y = 70
÷ 2
y = 35
So your values are y = 35 and x = 20. Hope this helps!

You might be interested in

-6x + 3x = -21 linear equations

snow_tiger [21]

well combine like terms

-3x = -21

divide both sides by -3

x = 7

8 0

3 years ago

Read 2 more answers

F(x)=8x^4-3x^2+4x-1=0 ; 0 less than or equal to r less than or equal to 1

lukranit [14]

Answer:

Step-by-step explanation:

7 0

3 years ago

Use and list a line of your choice that's neither horizontal nor vertical to reflect the object and show where it ends up.

EastWind [94]

Ughhh I’m not totally sure I’m sorry I tried looking it up for you

4 0

3 years ago

12 more than the number 5 and a x

siniylev [52]

Answer:

Step-by-step explanation:

(5+x)+12

4 0

3 years ago

Which is an equivalent form of the expression 1800(1.2)^-t

ololo11 [35]

Answer:

1800(5/6)^t

Step-by-step explanation:

I don't see any answer choices, but this would be another form if it is listed. The negative exponent means that you get the reciprocal of the fraction (in this case 1.2). This turns 1.2 into (1/1.2), which is equivalent to 5/6.

7 0

1 year ago