👤
Bawangthegreat0518go
Answered

1. If x = 3, what is the value of the expression 2x - 47
a. O
b.2
c. 7
__2. If a = 4 and b = -3, what is the value of (-2a - 3b)?
a.-17
b.-1
c. 1
_3. What is the sum of 6x, -4x and - 7x?
a.-5x
b. 5x
c. 9x
4. (5x + 3y) + (-2x + 7y) =
a. 3x + 10y
b.7x + 10y
c.-3x+10y
5. Subtract (4a + 3b-2c) from (7a -b +2c).
a. 3a - 4b + 4c
b. 3a + 2b
c. 3a + 2b + 4c​

Sagot :

Ablmyzgo
1.
2. C
3. A.
4. A.
5. A.
Maysaltikgo

Answer:

1. x = 3, 2x - 47

Substitute, 2(3) - 47 = 6 - 47 = - 41

2. a = 4, b = -3, -2a - 3b

Substitute, - 2(4) - 3(-3) = -8 - (-9) = -8 + 9 = 1

3. 6x + (-4x) + (-7x) = 6x - 4x - 7x = -5x

4. (5x + 3y) + (-2x + 7y) = 5x + 3y - 2x + 7y = 3x + 10y

5. (4a + 3b-2c) - (7a -b +2c) = 4a + 3b - 2c - 7a - b + 2c = -3a - 2b

Go Training: Other Questions