Question

Help me with my math homework please

Answer 1

21-
x is 18

`x + 3x + 18 = 90 \\ 4x + 18 = 90 \\ 4x = 90 - 18 = 72`

`x = (72)/(4) =18`


22- x is 50.5

`x + 58 + x + 21 = 180 \\ 2x + 79 = 180 \\ 2x = 180 - 79 = 101`

`x = (101)/(2) = 50.5`


23- x is 196/3

`2x + 8 + x - 24 = 180 \\ 3x = 24 + 180 - 8 = 196\\ x = (196)/(3)`



24- x is 88.5

`x + 15 + x - 12 = 180 \\ 2x = 180 - 15 + 12 = 177\\ x = (177)/(2) = 88.5`




25- x is 131

y is 180- 131=49






good luck