1) -x/0.7 = 1.-x = 1.4 * 0.-x = 0.9x = -0.98
2) -3y = 1.y = 1.8 / -y = -0.6
3) 0.5 / (-a) = -1.-0.5 / a = -1.a = -0.5 / -1.a = 1/3
4) 40 - t = -0.t = 40 + 0.t = 40.4
1) -x/0.7 = 1.
-x = 1.4 * 0.
-x = 0.9
x = -0.98
2) -3y = 1.
y = 1.8 / -
y = -0.6
3) 0.5 / (-a) = -1.
-0.5 / a = -1.
a = -0.5 / -1.
a = 1/3
4) 40 - t = -0.
t = 40 + 0.
t = 40.4