Question

BA ROG ,DAU COROANĂ ​

Answer 1

Răspuns:

3.  a)  a+(b+c)=75+38=113

b) 2a+(b+c)=2*75+38=150+38=188

c) 4a+2*(b+c)=4*75+2*38=300+76=376

4. a)(a+b)+(b+c)=24+5=29

b) 2a+2b+3b+3c=2*(a+b)+3*(b+c)=2*24+3*5=48+15=63

5. a) 3*(x+y)-5*z=3*15-5*2=45-10=35

b)7*z+14*(x+y)=7*2+14*15=14+210=224

6. a)(x+2y)+(y-3z)=14+3=17

   b)2*(x+2y)*5*(y-3z)=2*5*14*3=10*42=420

c)3x+6y+y-3z=3*(x+2y)+(y-3z)=3*14+3=45

Explicație pas cu pas:

Answer 2

Răspuns:

3) a)75+38=113

b)75+75+38=185

c)75×4+38+38=376

4)a)24+5=29

b)29×2=58

5)a)15×3-5×2=30-10=20

b)7×2+14×15=14+210=224

6)a)14-3=11

b)(14×2)×(3×5)=28-15=13

c)14×3+3=45