Solving Equations
Solve: 2x + 4 = 10
x=3
Simplify: 3x + 2x
5x
Solve: x + 5 > 9
x > 4
What is the slope of y = 3x + 2
3
A shirt costs $10 and increases by $2 each year. Write the function.
y = 2x + 10
Solve: 5x = 35
x=7
Simplify: 4(2x + 1)
8x+4
Solve: 3x ≤ 12
x ≤ 4
Identify the y‑intercept: y = –2x + 7
7
You have $20 and earn $5 per hour. Write the equation.
y = 5x + 20
Solve: 3(x – 2) = 12
x=6
Simplify: 6x – 2x + 5
4x+5
Solve: 2x – 1 ≥ 7
x ≥ 4
Write slope‑intercept form: slope 4, b = –1
y=4x-1
A number increased by 8 is 20. Find the number.
12
Solve: 4x + 7 = 3x – 5
x=-12
Simplify: (x² + 3x) – (2x² – x)
–x² + 4x
Solve: –2x < 10
x > –5
Find slope between (2, 5) and (4, 9)
2
Twice a number minus 3 is 11. Find the number.
7
Solve: 2(x + 3) – x = 9
x=3
Simplify: (3x)(2x²)
6x³
Solve: 4 – x ≥ 10
x ≤ –6
Is this linear: y = x² + 3
No
A taxi charges $4 plus $0.50 per mile. Write the function.
y = 0.5x + 4