Answer:
5x+10
Step-by-step explanation:
(7x+4) - (2x-6)
Distribute:
7x + 4 - 2x + 6
Combine like terms
5x + 10 (ans)
Answer:
60
Step-by-step explanation:
Answer:
Concept: Numerical Understanding
- First off its eight point five minus blank equals seven point fifteen
- The missing variable is a number that sums to 7.15
- Instinctively you could rearrange or see the value missing is 1.35
Answer:
9 inches
Step-by-step explanation:
Perimeter of equilateral triangle = 3x
Perimeter of square = 4x
3(x + 6) = 9 + 4x
3x + 18 = 9 + 4x
-x = -9
x = 9
Equation 1:
| 2 x - 3 | + 5 = 4
| 2 x - 3 | = -1
There are no solutions.
Equation 2:
| 5 x + 3 | - 10 = 3
| 5 x + 3 | = 13
5 x + 3 = 13 and : 5 x + 3 = - 13
5 x = 10 5 x = - 16
x = 2 x = - 3.2
Answer:
B ) Equation 1 has no solution and equation 2 has solutions x = 2, - 3.2.