y = x +8 where x is the number
Write the following as an algebraic expression using x as the variable: The sum of a number and -8
If: 2x+8 = 7 then x = -1/2
(x + y)/20
x-7
2.5
y = x +8 where x is the number
(1 + 20) x (20/2) ie 210
Write the following as an algebraic expression using x as the variable: The sum of a number and -8
32 + 20 = 4 x (8 + 5)
If: 2x+8 = 7 then x = -1/2
𝘛𝘸𝘪𝘤𝘦 means to multiply by 2. 𝘚𝘶𝘮 means to add together. So 𝘵𝘸𝘪𝘤𝘦 𝘵𝘩𝘦 𝘴𝘶𝘮 means to take whatever you're adding together and then multiply this result by 2. So your sum would be X+8. Multiplying this by 2 would give you 2X+16. Another way to write your answer would be to put parentheses around the X+8. That's because you need to do this part first. So another way to write your answer would be 2( X+8 ).
(x + y)/20
x-7
Start by setting up an equation. Use x for the integer. The equation would be: x/-3=12+-20 Find the sum of 12 and -20 which is -8. Therefore the equation would now be: x/-3=-8 Multiply -8 by -3 which equals 24. Therefore x=24 Plug it back into the equation to check that it works: 24/-3=12+-20 24/-3=-8 -8=-8 Thefore 24 is the integer that when divided by -3 it equals the sum of 12 and -20.
x + 8
98 = (9 x 101) + (8 x 100) or (9 x 10) + (8 x 1)