The value of x is 4. The steps to solving the equation are to use distributive property first so that the equation then looks like this: 10x+20=5x+40
Next you would combine like terms and then the equation would look like this: 5x+20=40
Then you would use the subtraction property of equality to subtract 20 from 40 so your equation will now look like this: 5x=20
Then you use the division property of equality to divide 20 by 5 to get x=4
Answer:
-1/3; A
Step-by-step explanation:
- to go through the origin, it must pass through (0,0); thus if we plug in 0 for x and 0 for y we are left with 4 + 12(z) = 0, solve for z and we get -1/3
Answer:
x = 41* & y = 90.
Step-by-step explanation:
Since we know that the figure is a right triangle, we can solve for y easily, as 90+y = 180
y = 90
to solve for x, we have 49+90+x, since the angle that makes up the left side is perpendicular to the triangle,
so 139+x = 180
x = 180-139
x = 41
Answer:
45
Step-by-step explanation:
-3=t/-15
t=-3*-15
t=45
Answer:
20x² + 25 x + 8
Step-by-step explanation:
f(x) = 4x² + 5x + 3
g(x) = 5x -7
Then:
g(f(x)) = 5(4x² + 5x + 3) -7
g(f(x)) = 20x² + 25x + 15 - 7
g(f(x)) = 20x² + 25x + 8
