58=4a-2
+2 +2
60=4a
--- ----
4 4
a=15
Remember the idea is to get a by itself, so you first add the 2 to each side ( because you have a negative 2) and then divide by 4 on each side to get a=15
1 x 58, 2 x 29.
5
4a + 2 = Answer let a = 2 then Answer equals 4(2) + 2 = 8 + 2 = 10.
4a + 2 = 4(6) + 2 = 24 + 2 = 26
10
There are infinitely many answers: 1*58 or 10*5.8 or 100*0.58 or 1000*0.058 etc or 2*29 or 20*2.9 or 200*0.29 etc and you could include irrational numbers.
They appear to be the equations of two parallel lines in the a-b plane.
a = -2-4a/3-2 = 8-4a = 8(3-2) times both sides by (3-2)-4a = 24-16-4a = 8-a = 2 divide both sides by 4a = -2 times both sides by -1
4a-2=7a-6 4=3a a=4/3
a= -4
4a+3a-4 = 10 4a+3a = 10+4 7a = 14 a = 2
4a - 5 = 7a - 7 -5 = 3a - 7 2 = 3a a = 3/2