The subtraction property of inequality can be used to proof that x = 7 from x + 8 = 15
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
Given that x + 8 = 15
Hence:
x + 8 - 8 = 15 - 8 (subtraction property of inequality)
x = 7
The subtraction property of inequality can be used to proof that x = 7 from x + 8 = 15
Find out more on equation at: brainly.com/question/2972832
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Answer:
14. D=70°
e=110°(straight line angles)
15. R=42°(vertically opposite angles)
S=68°(sum of interior angles of a triangle)
16.x=50°(angles on a straight line)
y=70°(sum of interior angles of a triangle)
hope this helps you
