-2b + 7 -3b = 2
-2b +7 -3b +2b = 2 + 2b
7 -3b + 3b = 2 + 2b +3b
7-2 = 2-2 + 2b + 3b
5 = 5b
1 = b
3a + 2b = (3*6) + (2*5) = 18 + 10 = 283a+2b= (3x6)+(2x5)= 18+10=28
A = 2b + cSubtract 'c' from each side:A - c = 2bDivide each side by 2:b = 1/2 (A - c)
4b^2
2a + 2b = c subtract 2a from both sides 2a - 2a + 2b = c - 2a 2b = c - 2a divide both sides by 2 (2/2)b = (c - 2a)/2 b = (c - 2a)/2 --------------------
b= 1/2 (a - c)
8b + 11 - 3b = 2b + 2 5b + 11 = 2b + 2 5b - 2b = 2 - 11 3b = -9 b = -3
If: a = 2b+c Then: a-c = 2b And: b = (a-c)/2
Whan a = 2 and b = 6, 5a + 2b = 5*2 + 2*6 = 10 + 12 = 22
3a + 2b = (3*6) + (2*5) = 18 + 10 = 283a+2b= (3x6)+(2x5)= 18+10=28
A = 2b + cSubtract 'c' from each side:A - c = 2bDivide each side by 2:b = 1/2 (A - c)
4b^2
2a + 2b = c subtract 2a from both sides 2a - 2a + 2b = c - 2a 2b = c - 2a divide both sides by 2 (2/2)b = (c - 2a)/2 b = (c - 2a)/2 --------------------
3 times 6 is 18 2 times 5 is 10 18 plus 10 is 28
2b-6=20 2b=26 b=26/2 b=13
2(a+b) is 2a plus 2b in factored form.
b= 1/2 (a - c)
a = 2b - c a + c = 2b (a+c)/2 = b b = (a+c)/2