Question

1.) $6x - 7 - 3x = \quad 6x + -7 + -3x = \underbrace{6x + -3x} + -7 =$\
2.) $4z - 10 - 9z =$\
3.) $-6c - 4 - 5c =$\
4.) $2x - 3y - 5x + 8y =$\
5.) $4a + 2b - 6a - 5b =$\
6.) $-5x - (-2) + 2x + 8 =$\
7.) $11x - 3 - (-2x) - 4 =$\
8.) $-3x - 7 - x - 8 =$\
9.) $7x - x - (-2x) =$\
10.) $-4y - 2b + 4y - 2b =$

Explanation:

Step1: Simplify like terms (6x - 3x)

$6x - 3x = 3x$

Step2: Combine with the constant term (-7)

$3x - 7$

Step1: Simplify like terms (4z - 9z)

$4z - 9z = -5z$

Step2: Combine with the constant term (-10)

$-5z - 10$

Step1: Simplify like terms (-6c - 5c)

$-6c - 5c = -11c$

Step2: Combine with the constant term (-4)

$-11c - 4$

Step1: Simplify x - terms (2x - 5x)

$2x - 5x = -3x$

Step2: Simplify y - terms (-3y + 8y)

$-3y + 8y = 5y$

Step3: Combine the results

$-3x + 5y$

Answer:

$3x - 7$

Problem 2: \(4z - 10 - 9z\)