988.187
10x3+8=80-60+? 30+8=20+? 38=20+? 38-20=? 18=? The answer is 18.
94+94+80+80=348.
Subtracting gives: 10x = 80 so x = 8 and y = 5
x = 6y = 89x + 10y = 9(6) + 10(8) = 54 + 80 = 134
80+80=160 your welcome
988.187
10x3+8=80-60+? 30+8=20+? 38=20+? 38-20=? 18=? The answer is 18.
94+94+80+80=348.
It is the property that equals plus equals are equals.
Subtracting gives: 10x = 80 so x = 8 and y = 5
x = 6y = 89x + 10y = 9(6) + 10(8) = 54 + 80 = 134
I'm assuming that you mean 7.6 cm plus 4 millimeters/ And so the answer is 8 cm or 80 mm.
To do it in your head: think (60 + 8) + (80 + 5) then rearrange (still in your head): (60 + 80) + (8 + 5) 140 + 13 153
it is 28
80 80 + —— 160 160 80 + —— 240
89