Answer: 2x+5=75. X=35.
Step-by-step explanation: Let’s make the number x. It says twice the number. So that would be x times 2 or two x. Then the sum of twice a number and five. So it would be 2x+5. That equals to 75. So the equation would be 2x+5=75. Then to solve it, subtract five from both sides. 2x=70. Then divide the whole thing by two. X=35.
Answer:
x = 1 is not a solution to the equation
Step-by-step explanation:
2x + 4 = -3x - 2 x = 1
2(1) + 4 = -3(1) - 2
2 + 4 = -3 - 2
6 = -5 FALSE
Answer: 90°
Step-by-step explanation:
The two arcs made by the angle will add up to twice the value of the angle in degrees
89 * 2 = 178
178 - 88 = 90