Question

Calculati ecuatiile:
a) 3x-2=4
b)2(x-2)+3=3
c) 6-2x=4
d)5+2(x-4)=11
e)4(3-x)+3=3
f)2(x+3)+5x=18
g)24,43-x=8,938
Ajutati-ma va rog

Answer 1

a)3x-2=4
3x=4+2
3x=6
x=6÷3
x=2
b)2(x-2)+3=3
2x-4+3=3
2x=3+4-3
2x=4
X=4÷2
x=2
c) 6-2x=4
-2x=4-6
-2x=-2
x=(-2)÷(-2)
x=1
d)5+2(x-4)=11
5+2x-8=11
2x=11-5+8
2x=14
x=14÷2
x=7
e)4(3-x)+3=3
12-4x+3=3
-4x=3-12-3
-4x=-12
x=(-12)÷(-4)
x=3
f)2(x+3)+5x=18
2x+6+5x=18
7x=18-6
7x=12
x=12÷7=12 supra 7
f)24,43-x=8,938
-x=8,938-24,43
-x=-15,492
x=15,492