<span>the answer is parallelogram i think
</span>
Step-by-step explanation:
x-4+3x+100=180
4x+96=180
4x=84
x=21
Answer:
the answer is 3
15/(2+3)
=15/5
=3
Step-by-step explanation:
Answer:
x =4
Step-by-step explanation:
x/y = 1/2
(x + 2) / (y + 1) = 2/3
Cross multiply the first equation
2x = y
Put that value for y into the second equation.
(x + 2) / (2x + 1) = 2/3 Cross multiply
3(x + 2) = 2(2x + 1) Remove the brackets.
3x + 6 = 4x + 2 Subtract 3x from both sides
6 = 4x - 3x + 2
6 = x + 2 Subtract 2 from both sides
6-2 = x
x = 4
