How to solve 6n+2f=736 and 10n+2f=920 by using graphing
the first thing to do is to subtract 16 from both side of the equation:
16 - 16 - b = 7 - 16
the 16s on the left cancel out resulting in:
-b = -9
think of the -b as -1(9). this is multiplication. by doing the inverse operation (division) we can get rid of the negative on the b. we will divide both sides by -1.
this leaves a positive b. since both parts of the right side of the equation are negative it becomes positive ( a negative divided by a negative is a positive).
the final answer is b= 9.
check our work by plugging in the b value (9) into the original equation:
16 - 9 = 7
7 = 7 is true so we now we have the right answer.
no, these angles are not congruent.
this is because the different sides need to be proportional; or equal. the sides of the angles are not equal.
one way to see if they are proportional is if you subtract the numbers on each side to find the exact number. therefore if you subtract 20 from 25, you get 5, right? but if you subtract 16 from 20, you get 4, not 5.
to sum it all up, no the angles aren't congruent. hope this , and have a great day!