Answer:
x=42
Step-by-step explanation:
2(x-8)=68
Distribute the 2
2x-16=68
Use the addition property of equality (add 16 to both sides)
2x=68+16
2x=84
Use the division property of equality (divide both sides by 2)
x=84/2
x=42
Answer:
-10
Step-by-step explanation:
Assuming that x-2=-5, we can subtitute it into the equation as follows:
(-5)^2 + 5(-5) - 10, we start off with the exponent according to the order of operations resulting in:
25 + 5(-5) -15, then we do the multiplication next:
25 + (5 * -5 = -25) so:
25 + -25 - 10, the 25s cancel each other out and your left with:
0 - 10 which equals -10
Answer:
option A and E
Step-by-step explanation:
Option A is equivalent because of the commutative law of addition;
(A + B) + C = A + (B + C)
option E is also correct because multiplication rule of inside the brackets.
A - ( - B - C) = A + B + C
Answer:
2
When the decimal is 5 or more, the number is rounded up by converting it into the next whole number.
