Answer:
10/18
Step-by-step explanation:
Multiply both the numerator and denominator by 2
Answer:

Step-by-step explanation:
We are given this system of equations:

We use elimination to solve to eliminate one of the variables, so we only have to work with one at a time. We do this by adding and subtracting the equations, and sometimes multiplying the entire equation by a number.
Notice how both equations have a 4x. This means they can easily be eliminated, without multiplying the equations by another number first. Let's subtract the 2 equations.

The 4x will cancel because 4x-4x=0.

Since there are back to back negative signs, they become addition signs.


We are solving for y , so we must isolate the variable. It is being multiplied by 3 and the inverse of multiplication is division. Divide both sides by 3.

Now we can substitute 3 in for y in the original equations. Let's use the first one.

3 is being added to 4x. The inverse of addition is subtraction. Subtract 3 from both sides.

x is being multiplied by 4. The inverse of multiplication is division. Divide both sides by 4.

x is equal to 1 and y is equal to 3. Coordinate points are written as (x, y). The solution to this system of equations is (1, 3).
Answer:
im sorry but that is confusing mine was worded out different so sorry hope you find it.
Step-by-step explanation:
X²+10x+21=0
/\ = 10²-4*1*21
/\ = 100 - 84
/\ = 16
x = (-10+/-\/16)/2
x = (-10+/-4)/2
x' = (-10+4)/2 = -6/2 = -3
x" = (-10-4)/2 = -14/2 = -7
S: {-3; -7}
Parallel lines implies that angle w(the known angle 58 degrees) is congruent to angle z(right next to angle 2) and that angle z is congruent to angle 5 because if corresponding angles are congruent to make angle 5 be 58 degrees
hope i helped