Answer:
hope this help you 
Explanation:
Simplifying 
X + -7y = -11 
Solving 
X + -7y = -11 
Solving for variable 'X'. 
Move all terms containing X to the left, all other terms to the right. 
Add '7y' to each side of the equation. 
X + -7y + 7y = -11 + 7y 
Combine like terms: -7y + 7y = 0 
X = -11 + 7y 
Simplifying 
X = -11 + 7y
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Solving 
5x + 2y = -18 
 Solving for variable 'x'. 
Add '-2y' to each side of the equation. 
5x + 2y + -2y = -18 + -2y 
Combine like terms: 2y + -2y = 0 
5x = -18 + -2y 
Divide each side by '5'. 
x = -3.6 + -0.4y 
Simplifying 
x = -3.6 + -0.4y