6x - 2y = -10
Plug in 4 for y because you are given (x, y) --> (x, 4).
6x - 2(4) = -10
Multiply 2 * 4.
6x - 8 = -10
Add 8 to both sides.
6x = -2
Divide both sides by 6.
x = -2/6 = -1/3
Complementary angles add up to 90 degrees.
Which means.. the equation is
8x-23+7x-7=90
Combine like terms you should get
15x-30=90
Add 30 on both sides
15x=120
Divide 15 x=8
Plug in 8 to (8x-23)
8(8)=64-23=41
m
Answer:
c -27
Step-by-step explanation:
-32-(-5)
-32+5
-27
2x + x = 60 that is your equation. Simplify it and you get 3x = 60. 60/3 equals 20 so you have 20 boys but multiply it by 2 since you have twice as many girls and you get 40 girls total.
