Answer:

Step-by-step explanation:
Let the number be x.
Translating the word problem into an algebraic equation, we have;
Opening the bracket, we have;

Collecting like terms, we have;

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation for example : -8-7x+-5(4)=0 . But the zero turned to -1 because a non zero constant never equals 0,but the problem doesn’t have a solution, but the answer is -1
Factor out the common term 2
2(2x + y) = -2
Divide both sides by 2
2x + y = -1
Subtract 2x from both sides
<u>y = -1 - 2x</u>
Answer: 3-t
1. 1/4(12)+1/4(-4t)
2.3-t
Answer:
a: is false the base is an rectangle
b: is true because you multipluy the hight depth and length. that gives you 81
c: is correct because 9 times 4 is 36
d: is incorrect because you need to double all numbers for the volume to double
Step-by-step explanation: