Answer:
D. The subtraction property of equality was not applied to solve this equation.
Step-by-step explanation:
<u>Step 1</u>: Given
<u>Step 2</u>: Addition Property of Equality
(add 7 to both sides)
<u>Step 3</u>: Simplify
<u>Step 4</u>: Multiplication Property of Equality
(multiply both sides by 2)
<u>Step 5</u>: Simplify
Answer:
Step-by-step explanation:
B=3x-2
C=12x+2
D=B=3x-2 (Vertically opposite angles)
A=?
Now; we know, A+B+C+D=360 deg.
=>A=360-(B+C+D)
=360-(3x-2+12x+2+3x-2)
=360-(18x-2) ----[1]
B+C=180 deg. (linear pair)
=> 3x-2+12x+2=180
=> 15x=180
=> x=180/15
=12 ---[2]
subsitute [2] in [1];
=> A= 360-(18x-2)
= 360-(18*12-2)
= 360-(116-2)
= 360-214
= 146 deg.
So, the correct answer is (D).
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C. You multiply 5 x e and form together as 5e.