Answer:
x=-1
Step-by-step explanation:
1. Remove the parenthesis
-x + 1 = -4x - 2
2. Get x alone
-x + 1 = -4x - 2
+1x +1x
1=-3x - 2
+2 +2
3=-3x -3x/-3= x 3/-3 = -1
x=-1
Which equation has infinitely many solutions? a 12 + 4x = 6x + 10 - 2x
b 5x + 14 - 4x = 23 + x-9 c
c X + 9 -0.8x = 5.2x + 17-8
d 4x-2x = 20
The degree of a polynomial is the highest power of its terms.
The power of a term is the sum of the powers of all the variables in a term.
A polynomial is written starting with the greatest power in standard form.
In the first case, the power of the first term is 3, the power of the second is 3 (2 from x + 1 from y) but the power of x has decreased so it is the second term, and then so on.
In the second case, the power is starting form 2 and then increasing to 3. This is incorrect.
Therefore, Marcus' suggestion is correct.
4(m + 2) expanded is 4 x m and 4 x 2
simplified: 4m + 8
Answer: x=4
Step-by-step explanation:
2x-3(x+4)=3x-4
distribute 2x-3x-12=3x-4
combine like terms 5x-12=3x-4
Move everything to one side 2x-8=0
Get x by itself 2x=8
Divide by 2 x=4
