2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4
(x + 4)(x + 1) x = -1 or -4
4(x + 1)(x + 1)
(x+3)(x+4) = x2+7x+12
1
5a + 4b - 3a =(5a - 3a) + 4b =2a + 4b =2 (a + 2b)
9(4b-1)=2-(x+4) what is x
if i think of it, a=4b though a =20 so 20=4b 4 x 5=20 so b would equal five 4B/4=20/40 B=5 4(5)=20
2
8/12 = 4/3b8/12 = 4 x b/33x8/12 = 4xb24/12 = 4b2 = 4b2/4 = 4b/4b = 2/4b = 1/2
The expression 4 x b x b x b simplifies to 4b^3. This is because when you multiply the coefficients 4 and 1, you get 4. When you multiply the variables b, b, and b, you add the exponents, resulting in b^3. Therefore, 4 x b x b x b equals 4b^3.
(x + 4) + (x + 5) = 2x + 9
x/(x + 4) = 4/(x + 4) + 2 (x - 4)/(x + 4) = 2 x - 4 = 2x + 8 -x = 12 x = -12
4a x 4b = 16ab Variables can be multiplied just like numbers.
4x + 4 or 4(x + 1)
2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4
you choose and tell mea)x=4b)x+4=6c)4x+2=22d)x4 as an exponent=16