Question | Answer |
adding same number to both sides if 2x=3y, then 2x+1 = 3Y+1 | addition property of equality |
subtracting same number to both sides if 2x=3y, then 2x-1=3y-1 | subtraction property of equaity |
multiplying the same number to both sides if x=y, then 2x=3y | multiplication property of equality |
dividing the same number to both sides if 2=y, then x/2=y/2 | division property of equality |
a number or expression is equal to itself 4x=4x | reflexive property |
can flip flop an equation x+5=10, then 10=x+5 | symmetric property |
two numbers equal to the same 3rd number are also equal to each other if x=6 and y=6, then x=y | transitive property |
if 2 expressions are equal, they can be substituted for each other anywhere if x=4, then 4 can be substituted anywhere x is | substitution property |
segments AB=AB | reflexive property of equality |
<1+<2=90 | definition of complimentary angles |
<1+<2=180 | definition of suplementary anges |
If R is the midpoint of XY, then XR=RY | definition of midpoint |
If P is between A and B, then AP+PB=AB | segment addition postulate |
If AB=CD, then AB{CD | definition of congruent segments |
If ray RA is a bisector of | definition of angle bisector |
<1{<1 | reflexive property of congruence |
If <1=<2, then <2=<1 | symmetric property of equality |
If <2 is a right angle, then <2=90 degrees | definition of a right angle |
If lines m and n are perpendicular, then )1 is a right angle. | definition of perpendicular lines |
If <1+<2=90, then <1 and <2 are complementary. | definition of complementary angles |
If m<1=m<2, then <1{<2. | definition of congruent angles |
If <1=90, then <1 is a right angle. | defintion of right angle |
If <1{<2, then <1=<2. | defintion of congruent angles |
If AB=CD, then AB+RT=CD+RT | addition property of equality |
If <1{<2 and <2{<3, then <1{<3. | transitive property of equality |
If GH=5 and GH+CD=XY, then 5+CD=XY. | substitution property of equality |
If AB=PQ, and PQ+MN, then AB=MN. | transitive property of equality. |