In this question, you're solving for x.
Solve for x:
2(4 - 8x) + 5(2x - 3) = 20 - 5x
Use the distributive property:
8 - 16x + 5(2x - 3) = 20 - 5x
8 - 16x + 10x - 15 = 20 - 5x
Combine like terms:
8 - 16x + 10x - 15 = 20 - 5x
8 - 6x - 15= 20 - 5x
-6x - 7 = 20 - 5x
Add 5x to both sides
-x - 7 = 20
Add 7 to both sides
-x = 27
Divide both sides by -1
x = -27
Answer:
x = -27
Answer:
Step-by-step explanation:
wait so each one of them are questions right?
Answer:
true
hope this helps
have a good day :)
Step-by-step explanation:
Let x = cups of 11% wheat, and y = cups of 63% wheat
He wants 12 cups in total, so we need:
x + y = 12
These 12 cups need to have 50% wheat, which means we are looking at 12*.5 = 6 cups of wheat in total, so our second equation is:
.11x + .63y = 6
We have two equations and two variables. So we can solve by using any means you want. I used substitution:
x = 12 - y
.11(12-y) + .63y = 6
1.32 -.11y + .63y = 6
.52y = 4.68
y = 9
Which means x = 3
Thus, 3 cups of 11% and 9 cups of 63%.
Answer:
436
Step-by-step explanation:
(10 x 15 x 2) + (12 x 18 x 1/2) + 18 + 10 = SA
300 + (12 x 18 x 1/2) + 18 + 10 = SA
300 + 108 + 18 + 10 = SA
300 + 108 + 28 = 436
436
