Answer:
That is a 25% change.
Step-by-step explanation:
Step-by-step explanation:
Simplifying
3x + -28 + 3x + -30 + x = 33
Reorder the terms:
-28 + -30 + 3x + 3x + x = 33
Combine like terms: -28 + -30 = -58
-58 + 3x + 3x + x = 33
Combine like terms: 3x + 3x = 6x
-58 + 6x + x = 33
Combine like terms: 6x + x = 7x
-58 + 7x = 33
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '58' to each side of the equation.
-58 + 58 + 7x = 33 + 58
Combine like terms: -58 + 58 = 0
0 + 7x = 33 + 58
7x = 33 + 58
Combine like terms: 33 + 58 = 91
7x = 91
Divide each side by '7'.
x = 13
Simplifying
x = 13
AnswerSolving
-58 + 7x = 33
1)1+39=40
2)2+38= 40
3)3+37=40
4)4+36= 40
5)5+35=40
6)6+34=40
7)7+33=40
8)8+32=40
9)9+31= 40
10)10+30=40
11)11+29=40
12)12+28=40
13)13+27= 40
14)14+26=40
15)15+25=40
16)16+ 24= 40
17)17+23= 40
18)8+ 22= 40
19)19+21=40
20) 20+20= 40
20 pairs!
Answer:
B
Step-by-step explanation:
it's the only equation that actually makes sense
X² + 2x +3
If the discriminent Δ = b²-4.a.c <0 , that means the roots (or the zero value) are nit REAL Number (they are imaginary or complex)
Δ = 2² - 4(1)3) = 4 - 12 = -8
since Δ = - 8 < 0 there are no real roots