Answer: X=2
2x plus 2x plus 3x equals 7x and then you add the +5 which means you now have 7x+5=6x+7 which you then solve from there by subtracting the 6x from the left side. You then get x+5=7 meaning x=2.
Answer:
3≤x≤6
Step-by-step explanation:
2≤3x-7≤11
2+7≤3x-7+7≤11+7
9≤3x≤18
9÷3≤3x÷3≤18÷3
3≤x≤6
Answer:
1 5/8
Step-by-step explanation:
3 3/8 - 1 3/4 = (3*8 +3)/8 - (1*4 +3)/4
= 27/8 - 7/4 = 27/8 - (2*7)/*2*4)
= 27/8 - 14/8 = (27-14)/8
= 13/8 = (8+5)/8 = 1 5/8
Answer:#1- x = 19.5
#2- x = 21
Step-by-step explanation:hope this helps :)
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Answer:
(3, 12)
Step-by-step explanation:
x + y = 15
x - y = -9
add them together
2x + 0y = 6
2x = 6
x = 6/2
x = 3
substitute 3 into any equation, i chose x + y = 15
3 + y = 15
y = 12
check for 2nd equation:
3 - 12 = -9
-9 = -9