10. 4 + 5x < 54
- subtract 4 to the right
- divide both sides by 5
answer: x < 10
11. 2(x + 4) + 3 = 6 - x
- distribute 2 to x and 4
- add 8 and 3
- add -x to left side
- subtract 11 to right side
- divide both sides by 3
answer: x = -5/3
Answer:
8/15
Step-by-step explanation:
KEEP FLIP FLIP
keep 2/5
flip the sign (multiply, not divide)
flip 3/4 to 4/3
2/5 x 4/3
8/15
Answer:
y = 5x+b
Step-by-step explanation:
Answer:
x = 20
Step-by-step explanation:
Here, we want to get the value of x
To get the value of x, we need to know the kind of relationship that exists between the two given angles
Both angles lie on a straight line and that means they are supplementary
What this mean is that they add up to 180
(5x-7) + (3x + 27) = 180
5x -7 + 3x + 27 = 180
5x + 3x -7 + 27 = 180
8x + 20 = 180
8x = 180-20
8x = 160
x = 160/8
x = 20
