dawsonscripture
dawsonscripture
02-10-2020
Mathematics
contestada
What does a equal -5(6a+21)=-15
Respuesta :
BunBoiReborn
BunBoiReborn
02-10-2020
Step 1 remove paranthesis
(-30a-105)=-15
Step 2: Move constant to RHS (take not negative sign is removed if sides are changed and vice versa)
-30a=-15+105
-30a=90
Step 3: Simplify
-a=3
Step 4: remove negative sign from variable
a=3
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