The sum of 3a²-a-3 and 2a-9 is 3a²+a-12
3a²+a-12 - (a²-3a-7) = 3a²+a-12 - a² + 3a + 7 =
2a² +4a - 5
Answer:
90 degrees and(x)
Step-by-step explanation:
y is 32 degrees.
Answer:
-9x + 5
Step-by-step explanation:
(-3x+2) - (6x-3) (- sign will change the sign of the 2nd expression) so
=-3x+2-6x+3
= -9x + 5
Answer:
Step-by-step explanation:
The total angle measure of supplementary angles (straight angles like this one) will always equal °, so the following equation can be used: