Answer:
a = 7
Step-by-step explanation:
8a - 4 = 3 + 7a export like terms to the same side of the equation
8a - 7a = 3 + 4 add like terms (the expressions will change sign when exported like when it's a negative expression it will be positive and vice versa.)
a = 7
Answer:
3 groups
Step-by-step explanation:
6 / 2 = 3 groups
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Answer:
Step-by-step explanation:
11.-3(2x-8)=-12
-6x+24=-12
-6x=-12-24
x=-36/-6
x=6
12.4(6+2x)=0
24+8x=0
8x=0-24
x=-24/8
x=-3
13.3x+2x+6=-15
5x+6=-15
5x=-15-6
x=-21/5
14.4=-2(x+3)
4=-2x-6
4+6=-2x
10/-2=x
-5=x
15.27=46+2x-x
27=46+x
27-46=x
-19=x
