3 years ago

Plz help me ASAP ;-;

Mathematics

2 answers:

Angelina_Jolie [31]3 years ago

4 0

Option 1! If you expand the bracket and simplify.

svlad2 [7]3 years ago

3 0

Answer:

The person who answered it first is correct

Step-by-step explanation:

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Solve using substitution. y = -10x-10 y = -3x + 4

Nikolay [14]

-10x-10 = -3x+4
+3x +3x
————————
-7x-10 = 4
+10 +10
————————
-7x = 14
then divide -7 on both side of the equal sign
you’ll get x=-2

then plug in -2 as x into one of the equations ( it doesn’t matter which one)

y= -10(-2)-10 = 20-10= 10

so y=10

4 0

3 years ago

Solve for x: (x+4)/2=7 * (x+4)/2 is a fraction *

blondinia [14]

Answer:

x=10

Step-by-step explanation:

So, we got our equation:

$\frac{x+4}{2}=y$