Answer:
200. 200 200 200 200 200 is the answer
Answer:
(a) Verified
(b) They are simultaneous equations
Step-by-step explanation:
Given


Required
Verify that:
is a solution
We have:

Substitute:

Evaluate all products

Subtract:

<em>Because both sides of the equation are equal, then the point is a solution</em>
<em></em>
Also: 
Substitute:

Evaluate all products

Subtract:

<em>Because both sides of the equation are equal, then the point is a solution</em>
<em></em>
<em></em>
Because the given point is a solution to both equations, then they are simultaneous equation
The correct answer is B addition
You will add 4 to both sides then the equation will be 2x=5
Answer:
I
Step-by-step explanation:
3x-5+7x+5+90=180
x=9