Answer:
5
Step-by-step explanation:
Plug in this question into your calculator. This question is also equivalent to .
Can you show another pic of it ?
Answer:
Step-by-step explanation:
x = small barrettes
y = large barrettes
13x + 11y = 142.......multiply by -1
13x + 12y = 149
-----------------------
-13x - 11y = -142 (result of multiplying by -1)
13x + 12y = 149
------------------------add
y = 7..........large barrettes used 7 yards
13x + 11y = 142
13x + 11(7) = 142
13x + 77 = 142
13x = 142 - 77
13x = 65
x = 65/13
x = 5........small barrettes used 5 yards
Answer:
The answer is 4.
Step-by-step explanation: To get the variable you do the opposite operation. So for this question you would do the opposite of subtraction which is addition. So you would add 5 to -1 and get 4.