Can you please help me this is the elimination method

for number one its -x+10y=14x+10y=21 the next one is Simplifying

-7x + -5y = 11

Solving

-7x + -5y = 11

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '5y' to each side of the equation.

-7x + -5y + 5y = 11 + 5y

Combine like terms: -5y + 5y = 0

-7x + 0 = 11 + 5y

-7x = 11 + 5y

Divide each side by '-7'.

x = -1.571428571 + -0.7142857143y

Simplifying

x = -1.571428571 + -0.7142857143y

Step-by-step explanation:

these r for the first one

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation: