Solve the equation. You may find using algebra tiles helpful in solving this problem. x + 4 = −x − 4

x =
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x = -4

Step-by-step explanation:

So we have this algebraic equation: x + 4 = −x − 4

All we have to do is move all the x's to the right hand side and the other numbers to the left hand side, like this:

x + x = - 4 - 4

2x = -8

x =

x = -4

i need a picure

step-by-step explanation:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft