Simplify each expression.

1. evaluate if x=2, y=4,and z=1

2x+ 5y+3z

4+20+3=27

Step-by-step explanation:

I’m not sure if this is right so sorry if it’s not right. The way you would solve this would be you replace the values with the numbers. So you woul do 2(2)+5(4)+3(1)= The parentheses mean you multiply. So you would do,2*2+5*4+3*1=4+20+3=27 Hopefully this is right and helped.

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

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step-by-step explanation: