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Answer:
x>-1
Step-by-step explanation:
-2x +3 < 5
Subtract 3 from each side
-2x+3-3 < 5-3
-2x < 2
Divide each side by -2
Remember that flips the inequality
-2x/-2 > 2/-2
x>-1
Answer:
540, 541, 542
Step-by-step explanation:
let the number be n
hence the 3 consecutive numbers may be expressed as:
n , n+1, n+2
it is given that the sum of the 3 numbers is 1623
hence,
n + (n+1) + (n+2) = 1623
n + n + 1 + n + 2 = 1623
3n + 3 = 1623
3n = 1623 -3
3n = 1620
n = 1620 / 3
n = 540
hence the numbers are
540, (540 + 1) , (540 + 2)
or
540, 541, 542
Answer:
simultaneous linear equations
Step-by-step explanation:
y=7x+3
y=x-3
