Answer:
1) b= -20
Step-by-step explanation:
You bring the variable you want to find to one side by either bringing over the second term to the other side of the equation and change its sign or if it's a fraction you multiply both sides to remove the denominator and then solve
Answer: 10a + 15b
Am am not that big brain
3,089.71
divide 74,153 by 12 and by 2
Line segment JK
because the order of the letters matter when specifying congruent shapes.